833 lines
26 KiB
TypeScript
833 lines
26 KiB
TypeScript
import PropTypes from 'prop-types'
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import React, { Component } from 'react'
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import flush from 'styled-jsx/server'
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import {
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AMP_RENDER_TARGET,
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CLIENT_STATIC_FILES_RUNTIME_AMP,
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CLIENT_STATIC_FILES_RUNTIME_REACT_REFRESH,
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CLIENT_STATIC_FILES_RUNTIME_WEBPACK,
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} from '../next-server/lib/constants'
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import { DocumentContext as DocumentComponentContext } from '../next-server/lib/document-context'
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import {
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DocumentContext,
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DocumentInitialProps,
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DocumentProps,
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} from '../next-server/lib/utils'
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import { cleanAmpPath } from '../next-server/server/utils'
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import { htmlEscapeJsonString } from '../server/htmlescape'
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export { DocumentContext, DocumentInitialProps, DocumentProps }
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export type OriginProps = {
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nonce?: string
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crossOrigin?: string
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}
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export async function middleware({ req, res }: DocumentContext) {}
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function dedupe(bundles: any[]): any[] {
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const files = new Set()
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const kept = []
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for (const bundle of bundles) {
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if (files.has(bundle.file)) continue
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files.add(bundle.file)
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kept.push(bundle)
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}
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return kept
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}
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function getOptionalModernScriptVariant(path: string): string {
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if (process.env.__NEXT_MODERN_BUILD) {
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return path.replace(/\.js$/, '.module.js')
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}
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return path
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}
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/**
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* `Document` component handles the initial `document` markup and renders only on the server side.
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* Commonly used for implementing server side rendering for `css-in-js` libraries.
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*/
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export default class Document<P = {}> extends Component<DocumentProps & P> {
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static headTagsMiddleware = process.env.__NEXT_PLUGINS
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? import(
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// @ts-ignore loader syntax
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'next-plugin-loader?middleware=document-head-tags-server!'
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)
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: () => []
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static bodyTagsMiddleware = process.env.__NEXT_PLUGINS
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? import(
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// @ts-ignore loader syntax
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'next-plugin-loader?middleware=document-body-tags-server!'
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)
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: () => []
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static htmlPropsMiddleware = process.env.__NEXT_PLUGINS
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? import(
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// @ts-ignore loader syntax
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'next-plugin-loader?middleware=document-html-props-server!'
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)
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: () => []
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/**
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* `getInitialProps` hook returns the context object with the addition of `renderPage`.
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* `renderPage` callback executes `React` rendering logic synchronously to support server-rendering wrappers
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*/
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static async getInitialProps(
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ctx: DocumentContext
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): Promise<DocumentInitialProps> {
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const enhancers = process.env.__NEXT_PLUGINS
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? await import(
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// @ts-ignore loader syntax
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'next-plugin-loader?middleware=unstable-enhance-app-server!'
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).then((mod) => mod.default(ctx))
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: []
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const enhanceApp = (App: any) => {
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for (const enhancer of enhancers) {
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App = enhancer(App)
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}
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return (props: any) => <App {...props} />
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}
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const { html, head } = await ctx.renderPage({ enhanceApp })
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const styles = [
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...flush(),
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...(process.env.__NEXT_PLUGINS
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? await import(
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// @ts-ignore loader syntax
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'next-plugin-loader?middleware=unstable-get-styles-server!'
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).then((mod) => mod.default(ctx))
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: []),
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]
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return { html, head, styles }
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}
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static renderDocument<P>(
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Document: new () => Document<P>,
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props: DocumentProps & P
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): React.ReactElement {
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return (
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<DocumentComponentContext.Provider
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value={{
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_documentProps: props,
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// In dev we invalidate the cache by appending a timestamp to the resource URL.
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// This is a workaround to fix https://github.com/vercel/next.js/issues/5860
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// TODO: remove this workaround when https://bugs.webkit.org/show_bug.cgi?id=187726 is fixed.
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_devOnlyInvalidateCacheQueryString:
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process.env.NODE_ENV !== 'production' ? '?ts=' + Date.now() : '',
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}}
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>
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<Document {...props} />
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</DocumentComponentContext.Provider>
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)
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}
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render() {
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return (
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<Html>
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<Head />
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<body>
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<Main />
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<NextScript />
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</body>
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</Html>
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)
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}
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}
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export class Html extends Component<
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React.DetailedHTMLProps<
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React.HtmlHTMLAttributes<HTMLHtmlElement>,
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HTMLHtmlElement
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>
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> {
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static contextType = DocumentComponentContext
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static propTypes = {
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children: PropTypes.node.isRequired,
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}
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context!: React.ContextType<typeof DocumentComponentContext>
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render() {
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const { inAmpMode, htmlProps } = this.context._documentProps
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return (
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<html
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{...htmlProps}
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{...this.props}
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amp={inAmpMode ? '' : undefined}
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data-ampdevmode={
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inAmpMode && process.env.NODE_ENV !== 'production' ? '' : undefined
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}
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/>
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)
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}
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}
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export class Head extends Component<
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OriginProps &
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React.DetailedHTMLProps<
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React.HTMLAttributes<HTMLHeadElement>,
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HTMLHeadElement
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>
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> {
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static contextType = DocumentComponentContext
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static propTypes = {
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nonce: PropTypes.string,
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crossOrigin: PropTypes.string,
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}
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context!: React.ContextType<typeof DocumentComponentContext>
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getCssLinks(): JSX.Element[] | null {
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const { assetPrefix, files } = this.context._documentProps
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const { _devOnlyInvalidateCacheQueryString } = this.context
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const cssFiles =
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files && files.length ? files.filter((f) => /\.css$/.test(f)) : []
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const cssLinkElements: JSX.Element[] = []
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cssFiles.forEach((file) => {
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cssLinkElements.push(
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<link
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key={`${file}-preload`}
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nonce={this.props.nonce}
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rel="preload"
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href={`${assetPrefix}/_next/${encodeURI(
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file
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)}${_devOnlyInvalidateCacheQueryString}`}
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as="style"
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>,
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<link
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key={file}
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nonce={this.props.nonce}
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rel="stylesheet"
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href={`${assetPrefix}/_next/${encodeURI(
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file
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)}${_devOnlyInvalidateCacheQueryString}`}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>
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)
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})
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return cssLinkElements.length === 0 ? null : cssLinkElements
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}
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getPreloadDynamicChunks() {
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const { dynamicImports, assetPrefix } = this.context._documentProps
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const { _devOnlyInvalidateCacheQueryString } = this.context
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return (
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dedupe(dynamicImports)
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.map((bundle: any) => {
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// `dynamicImports` will contain both `.js` and `.module.js` when the
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// feature is enabled. This clause will filter down to the modern
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// variants only.
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if (!bundle.file.endsWith(getOptionalModernScriptVariant('.js'))) {
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return null
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}
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return (
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<link
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rel="preload"
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key={bundle.file}
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href={`${assetPrefix}/_next/${encodeURI(
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bundle.file
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)}${_devOnlyInvalidateCacheQueryString}`}
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as="script"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>
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)
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})
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// Filter out nulled scripts
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.filter(Boolean)
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)
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}
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getPreloadMainLinks(): JSX.Element[] | null {
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const { assetPrefix, files } = this.context._documentProps
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const { _devOnlyInvalidateCacheQueryString } = this.context
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const preloadFiles =
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files && files.length
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? files.filter((file: string) => {
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// `dynamicImports` will contain both `.js` and `.module.js` when
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// the feature is enabled. This clause will filter down to the
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// modern variants only.
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return file.endsWith(getOptionalModernScriptVariant('.js'))
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})
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: []
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return !preloadFiles.length
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? null
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: preloadFiles.map((file: string) => (
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<link
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key={file}
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nonce={this.props.nonce}
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rel="preload"
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href={`${assetPrefix}/_next/${encodeURI(
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file
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)}${_devOnlyInvalidateCacheQueryString}`}
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as="script"
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>
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))
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}
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render() {
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const {
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styles,
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ampPath,
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inAmpMode,
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assetPrefix,
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hybridAmp,
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canonicalBase,
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__NEXT_DATA__,
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dangerousAsPath,
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headTags,
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unstable_runtimeJS,
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} = this.context._documentProps
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const disableRuntimeJS = unstable_runtimeJS === false
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const { _devOnlyInvalidateCacheQueryString } = this.context
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const { page, buildId } = __NEXT_DATA__
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let { head } = this.context._documentProps
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let children = this.props.children
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// show a warning if Head contains <title> (only in development)
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if (process.env.NODE_ENV !== 'production') {
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children = React.Children.map(children, (child: any) => {
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const isReactHelmet = child?.props?.['data-react-helmet']
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if (child?.type === 'title' && !isReactHelmet) {
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console.warn(
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"Warning: <title> should not be used in _document.js's <Head>. https://err.sh/next.js/no-document-title"
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)
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}
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return child
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})
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if (this.props.crossOrigin)
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console.warn(
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'Warning: `Head` attribute `crossOrigin` is deprecated. https://err.sh/next.js/doc-crossorigin-deprecated'
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)
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}
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let hasAmphtmlRel = false
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let hasCanonicalRel = false
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// show warning and remove conflicting amp head tags
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head = React.Children.map(head || [], (child) => {
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if (!child) return child
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const { type, props } = child
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if (inAmpMode) {
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let badProp: string = ''
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if (type === 'meta' && props.name === 'viewport') {
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badProp = 'name="viewport"'
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} else if (type === 'link' && props.rel === 'canonical') {
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hasCanonicalRel = true
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} else if (type === 'script') {
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// only block if
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// 1. it has a src and isn't pointing to ampproject's CDN
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// 2. it is using dangerouslySetInnerHTML without a type or
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// a type of text/javascript
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if (
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(props.src && props.src.indexOf('ampproject') < -1) ||
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(props.dangerouslySetInnerHTML &&
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(!props.type || props.type === 'text/javascript'))
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) {
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badProp = '<script'
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Object.keys(props).forEach((prop) => {
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badProp += ` ${prop}="${props[prop]}"`
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})
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badProp += '/>'
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}
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}
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if (badProp) {
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console.warn(
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`Found conflicting amp tag "${child.type}" with conflicting prop ${badProp} in ${__NEXT_DATA__.page}. https://err.sh/next.js/conflicting-amp-tag`
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)
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return null
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}
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} else {
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// non-amp mode
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if (type === 'link' && props.rel === 'amphtml') {
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hasAmphtmlRel = true
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}
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}
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return child
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})
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// try to parse styles from fragment for backwards compat
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const curStyles: React.ReactElement[] = Array.isArray(styles)
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? (styles as React.ReactElement[])
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: []
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if (
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inAmpMode &&
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styles &&
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// @ts-ignore Property 'props' does not exist on type ReactElement
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styles.props &&
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// @ts-ignore Property 'props' does not exist on type ReactElement
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Array.isArray(styles.props.children)
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) {
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const hasStyles = (el: React.ReactElement) =>
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el?.props?.dangerouslySetInnerHTML?.__html
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// @ts-ignore Property 'props' does not exist on type ReactElement
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styles.props.children.forEach((child: React.ReactElement) => {
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if (Array.isArray(child)) {
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child.forEach((el) => hasStyles(el) && curStyles.push(el))
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} else if (hasStyles(child)) {
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curStyles.push(child)
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}
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})
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}
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return (
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<head {...this.props}>
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{this.context._documentProps.isDevelopment && (
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<>
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<style
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data-next-hide-fouc
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data-ampdevmode={inAmpMode ? 'true' : undefined}
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dangerouslySetInnerHTML={{
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__html: `body{display:none}`,
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}}
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/>
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<noscript
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data-next-hide-fouc
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data-ampdevmode={inAmpMode ? 'true' : undefined}
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>
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<style
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dangerouslySetInnerHTML={{
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__html: `body{display:block}`,
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}}
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/>
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</noscript>
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</>
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)}
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{children}
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{head}
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<meta
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name="next-head-count"
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content={React.Children.count(head || []).toString()}
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/>
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{inAmpMode && (
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<>
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<meta
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name="viewport"
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content="width=device-width,minimum-scale=1,initial-scale=1"
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/>
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{!hasCanonicalRel && (
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<link
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rel="canonical"
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href={canonicalBase + cleanAmpPath(dangerousAsPath)}
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/>
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)}
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{/* https://www.ampproject.org/docs/fundamentals/optimize_amp#optimize-the-amp-runtime-loading */}
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<link
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rel="preload"
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as="script"
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href="https://cdn.ampproject.org/v0.js"
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/>
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{/* Add custom styles before AMP styles to prevent accidental overrides */}
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{styles && (
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<style
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amp-custom=""
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dangerouslySetInnerHTML={{
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__html: curStyles
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.map((style) => style.props.dangerouslySetInnerHTML.__html)
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.join('')
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.replace(/\/\*# sourceMappingURL=.*\*\//g, '')
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.replace(/\/\*@ sourceURL=.*?\*\//g, ''),
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}}
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/>
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)}
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<style
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amp-boilerplate=""
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dangerouslySetInnerHTML={{
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__html: `body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}`,
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}}
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/>
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<noscript>
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<style
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amp-boilerplate=""
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dangerouslySetInnerHTML={{
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__html: `body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}`,
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}}
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/>
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</noscript>
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<script async src="https://cdn.ampproject.org/v0.js" />
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</>
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)}
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{!inAmpMode && (
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<>
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{!hasAmphtmlRel && hybridAmp && (
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<link
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rel="amphtml"
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href={canonicalBase + getAmpPath(ampPath, dangerousAsPath)}
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/>
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)}
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{this.getCssLinks()}
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{!disableRuntimeJS && (
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<link
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rel="preload"
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href={
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assetPrefix +
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getOptionalModernScriptVariant(
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encodeURI(`/_next/static/${buildId}/pages/_app.js`)
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) +
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_devOnlyInvalidateCacheQueryString
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}
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as="script"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>
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)}
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{!disableRuntimeJS && page !== '/_error' && (
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<link
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rel="preload"
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href={
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assetPrefix +
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getOptionalModernScriptVariant(
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encodeURI(
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`/_next/static/${buildId}/pages${getPageFile(page)}`
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)
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) +
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_devOnlyInvalidateCacheQueryString
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}
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as="script"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>
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)}
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{!disableRuntimeJS && this.getPreloadDynamicChunks()}
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{!disableRuntimeJS && this.getPreloadMainLinks()}
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{this.context._documentProps.isDevelopment && (
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// this element is used to mount development styles so the
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// ordering matches production
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// (by default, style-loader injects at the bottom of <head />)
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<noscript id="__next_css__DO_NOT_USE__" />
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)}
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{styles || null}
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</>
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)}
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{React.createElement(React.Fragment, {}, ...(headTags || []))}
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</head>
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)
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}
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}
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|
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export class Main extends Component {
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static contextType = DocumentComponentContext
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|
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context!: React.ContextType<typeof DocumentComponentContext>
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|
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render() {
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const { inAmpMode, html } = this.context._documentProps
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if (inAmpMode) return AMP_RENDER_TARGET
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return <div id="__next" dangerouslySetInnerHTML={{ __html: html }} />
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}
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}
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export class NextScript extends Component<OriginProps> {
|
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static contextType = DocumentComponentContext
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|
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static propTypes = {
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nonce: PropTypes.string,
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crossOrigin: PropTypes.string,
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}
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context!: React.ContextType<typeof DocumentComponentContext>
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// Source: https://gist.github.com/samthor/64b114e4a4f539915a95b91ffd340acc
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static safariNomoduleFix =
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'!function(){var e=document,t=e.createElement("script");if(!("noModule"in t)&&"onbeforeload"in t){var n=!1;e.addEventListener("beforeload",function(e){if(e.target===t)n=!0;else if(!e.target.hasAttribute("nomodule")||!n)return;e.preventDefault()},!0),t.type="module",t.src=".",e.head.appendChild(t),t.remove()}}();'
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getDynamicChunks() {
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const { dynamicImports, assetPrefix, files } = this.context._documentProps
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const { _devOnlyInvalidateCacheQueryString } = this.context
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return dedupe(dynamicImports).map((bundle: any) => {
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let modernProps = {}
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if (process.env.__NEXT_MODERN_BUILD) {
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modernProps = /\.module\.js$/.test(bundle.file)
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? { type: 'module' }
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: { noModule: true }
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}
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if (!/\.js$/.test(bundle.file) || files.includes(bundle.file)) return null
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return (
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<script
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async
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key={bundle.file}
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src={`${assetPrefix}/_next/${encodeURI(
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bundle.file
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)}${_devOnlyInvalidateCacheQueryString}`}
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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{...modernProps}
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/>
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)
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})
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}
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getScripts() {
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const { assetPrefix, files, lowPriorityFiles } = this.context._documentProps
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const { _devOnlyInvalidateCacheQueryString } = this.context
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const normalScripts = files?.filter((file) => file.endsWith('.js'))
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const lowPriorityScripts = lowPriorityFiles?.filter((file) =>
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file.endsWith('.js')
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)
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return [...normalScripts, ...lowPriorityScripts].map((file) => {
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let modernProps = {}
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if (process.env.__NEXT_MODERN_BUILD) {
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modernProps = file.endsWith('.module.js')
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? { type: 'module' }
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: { noModule: true }
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}
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return (
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<script
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key={file}
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src={`${assetPrefix}/_next/${encodeURI(
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file
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)}${_devOnlyInvalidateCacheQueryString}`}
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nonce={this.props.nonce}
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async
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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{...modernProps}
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/>
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)
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})
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}
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getPolyfillScripts() {
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// polyfills.js has to be rendered as nomodule without async
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// It also has to be the first script to load
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const { assetPrefix, polyfillFiles } = this.context._documentProps
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const { _devOnlyInvalidateCacheQueryString } = this.context
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return polyfillFiles
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.filter(
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(polyfill) =>
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polyfill.endsWith('.js') && !/\.module\.js$/.test(polyfill)
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)
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.map((polyfill) => (
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<script
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key={polyfill}
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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noModule={true}
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src={`${assetPrefix}/_next/${polyfill}${_devOnlyInvalidateCacheQueryString}`}
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/>
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))
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}
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static getInlineScriptSource(documentProps: DocumentProps): string {
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const { __NEXT_DATA__ } = documentProps
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try {
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const data = JSON.stringify(__NEXT_DATA__)
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return htmlEscapeJsonString(data)
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} catch (err) {
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if (err.message.indexOf('circular structure')) {
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throw new Error(
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`Circular structure in "getInitialProps" result of page "${__NEXT_DATA__.page}". https://err.sh/vercel/next.js/circular-structure`
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)
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}
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throw err
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}
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}
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render() {
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const {
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staticMarkup,
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assetPrefix,
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inAmpMode,
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devFiles,
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__NEXT_DATA__,
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bodyTags,
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unstable_runtimeJS,
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} = this.context._documentProps
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const disableRuntimeJS = unstable_runtimeJS === false
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const { _devOnlyInvalidateCacheQueryString } = this.context
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if (inAmpMode) {
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if (process.env.NODE_ENV === 'production') {
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return null
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}
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const devFiles = [
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CLIENT_STATIC_FILES_RUNTIME_REACT_REFRESH,
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CLIENT_STATIC_FILES_RUNTIME_AMP,
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CLIENT_STATIC_FILES_RUNTIME_WEBPACK,
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]
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return (
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<>
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{staticMarkup || disableRuntimeJS ? null : (
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<script
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id="__NEXT_DATA__"
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type="application/json"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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dangerouslySetInnerHTML={{
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__html: NextScript.getInlineScriptSource(
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this.context._documentProps
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),
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}}
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data-ampdevmode
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/>
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)}
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{devFiles
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? devFiles.map((file) => (
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<script
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key={file}
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src={`${assetPrefix}/_next/${file}${_devOnlyInvalidateCacheQueryString}`}
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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data-ampdevmode
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/>
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))
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: null}
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{React.createElement(React.Fragment, {}, ...(bodyTags || []))}
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</>
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)
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}
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const { page, buildId } = __NEXT_DATA__
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if (process.env.NODE_ENV !== 'production') {
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if (this.props.crossOrigin)
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console.warn(
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'Warning: `NextScript` attribute `crossOrigin` is deprecated. https://err.sh/next.js/doc-crossorigin-deprecated'
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)
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}
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const pageScript = [
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<script
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async
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data-next-page={page}
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key={page}
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src={
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assetPrefix +
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encodeURI(`/_next/static/${buildId}/pages${getPageFile(page)}`) +
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_devOnlyInvalidateCacheQueryString
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}
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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{...(process.env.__NEXT_MODERN_BUILD ? { noModule: true } : {})}
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/>,
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process.env.__NEXT_MODERN_BUILD && (
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<script
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async
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data-next-page={page}
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key={`${page}-modern`}
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src={
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assetPrefix +
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getOptionalModernScriptVariant(
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encodeURI(`/_next/static/${buildId}/pages${getPageFile(page)}`)
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) +
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_devOnlyInvalidateCacheQueryString
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}
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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type="module"
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/>
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),
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]
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const appScript = [
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<script
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async
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data-next-page="/_app"
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src={
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assetPrefix +
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`/_next/static/${buildId}/pages/_app.js` +
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_devOnlyInvalidateCacheQueryString
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}
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key="_app"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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{...(process.env.__NEXT_MODERN_BUILD ? { noModule: true } : {})}
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/>,
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process.env.__NEXT_MODERN_BUILD && (
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<script
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async
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data-next-page="/_app"
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src={
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assetPrefix +
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`/_next/static/${buildId}/pages/_app.module.js` +
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_devOnlyInvalidateCacheQueryString
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}
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key="_app-modern"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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type="module"
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/>
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),
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]
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return (
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<>
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{!disableRuntimeJS && devFiles
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? devFiles.map(
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(file: string) =>
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!file.match(/\.js\.map/) && (
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<script
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key={file}
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src={`${assetPrefix}/_next/${encodeURI(
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file
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)}${_devOnlyInvalidateCacheQueryString}`}
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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/>
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)
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)
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: null}
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{staticMarkup || disableRuntimeJS ? null : (
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<script
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id="__NEXT_DATA__"
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type="application/json"
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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dangerouslySetInnerHTML={{
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__html: NextScript.getInlineScriptSource(
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this.context._documentProps
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),
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}}
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/>
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)}
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{process.env.__NEXT_MODERN_BUILD && !disableRuntimeJS ? (
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<script
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nonce={this.props.nonce}
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crossOrigin={this.props.crossOrigin || process.crossOrigin}
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noModule={true}
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dangerouslySetInnerHTML={{
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__html: NextScript.safariNomoduleFix,
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}}
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/>
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) : null}
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{!disableRuntimeJS && this.getPolyfillScripts()}
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{!disableRuntimeJS && appScript}
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{!disableRuntimeJS && page !== '/_error' && pageScript}
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{disableRuntimeJS || staticMarkup ? null : this.getDynamicChunks()}
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{disableRuntimeJS || staticMarkup ? null : this.getScripts()}
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{React.createElement(React.Fragment, {}, ...(bodyTags || []))}
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</>
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)
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}
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}
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function getAmpPath(ampPath: string, asPath: string): string {
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return ampPath || `${asPath}${asPath.includes('?') ? '&' : '?'}amp=1`
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}
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function getPageFile(page: string, buildId?: string): string {
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const startingUrl = page === '/' ? '/index' : page
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return buildId ? `${startingUrl}.${buildId}.js` : `${startingUrl}.js`
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}
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