25deefbba7
* Added a check for ad_ in the buildId
* ad_ > ad
Co-Authored-By: lfades <luis@zeit.co>
* Update the `ad` comment
Co-Authored-By: lfades <luis@zeit.co>
* Avoid all buildId's that contain "ad"
Looking through the uBlock Origin filter list, it uses regex wildcards to avoid various things with "ad" anywhere in the string. It's a safe bet to just avoid "ad" all together (as opposed to just at the start).
* Use regex (case incensitive) to check for "ad"
The following cases will set this regex to true:
```
/ad/i.test("somead")
/ad/i.test("someADlksdjf")
/ad/i.test("adlksdjf")
/ad/i.test("ADlksdjf")
```
17 lines
603 B
TypeScript
17 lines
603 B
TypeScript
export async function generateBuildId (generate: () => string|null, fallback: () => string): Promise<string> {
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let buildId = await generate()
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// If there's no buildId defined we'll fall back
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if (buildId === null) {
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// We also create a new buildId if it starts with `ad` to avoid false
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// positives with ad blockers
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while (!buildId || /ad/i.test(buildId)) {
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buildId = fallback()
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}
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}
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if (typeof buildId !== 'string') {
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throw new Error('generateBuildId did not return a string. https://err.sh/zeit/next.js/generatebuildid-not-a-string')
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}
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return buildId.trim()
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}
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