Inherit crossorigin on the injected web-vitals script#195
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sanason merged 1 commit intoJun 24, 2026
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@arpitjain099 Could I ask you to rebase this? I had to make some unrelated changes to get the tests running again. |
On pages that set Cross-Origin-Embedder-Policy: require-corp, the DAP tag can carry a crossorigin attribute so its response satisfies the policy. The dynamically injected web-vitals script never received that attribute, so it was blocked from loading on such pages. Read the crossorigin value from the DAP script tag (#_fed_an_ua_tag) and apply it to the web-vitals script element when present. Regenerated the minified bundle with the project's terser config. Fixes #167 Signed-off-by: Arpit Jain <arpitjain099@gmail.com>
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Rebased onto develop - thanks for getting the tests green again. Should be good for another look. |
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LGTM. Thank you, @arpitjain099 !
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Fixes #167.
On a page that sets
Cross-Origin-Embedder-Policy: require-corp, the DAP tag can be given acrossoriginattribute so its response satisfies the policy. That works forUniversal-Federated-Analytics-Min.jsitself, but the web-vitals script that the analytics code injects dynamically (web-vitals.attribution.iife.js) never received the attribute, so it was blocked from loading (screenshot in the issue).This reads the
crossoriginvalue from the DAP script tag (#_fed_an_ua_tag, already referenced elsewhere in the file) and applies it to the injected web-vitals<script>element when present. When the page does not setcrossorigin, nothing changes.Universal-Federated-Analytics.jsis the source; I regeneratedUniversal-Federated-Analytics-Min.js(and its map) with the repo's ownnpm run minify(terser +terser.config.json). Both files passnode --check.