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react-native-devtools-frontend/front_end/models/issues_manager/descriptions/sharedArrayBuffer.md
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Sigurd Schneider 157dd7a534 Update SAB deprecation timeline 
Bug: chromium:1207815
Change-Id: Ie3eb938ca1b7c33ff00f235cdc3577d5c1610b48
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2885263
Reviewed-by: Lutz Vahl <vahl@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
2021-05-11 06:52:22 +00:00

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SharedArrayBuffer usage is restricted to cross-origin isolated sites

SharedArrayBuffers (SABs) can be used to construct high-resolution timers. High-resolution timers simplify Spectre attacks on cross-origin resources.

To mitigate security risks across browsers, SharedArrayBuffers are gated behind cross-origin isolated contexts starting with Chrome 92 (July 2021). To continue using SharedArrayBuffers, please ensure that this page opts-into cross-origin isolation by setting Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy appropriately.

Note that for each iframe, only the first issue is reported for performance reasons.

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