RESOLVED FIXED 276859
[JSC] `Uint8Array#setFromBase64` should decode and write chunks which occur prior to bad data 
https://bugs.webkit.org/show_bug.cgi?id=276859
Summary [JSC] `Uint8Array#setFromBase64` should decode and write chunks which occur p...
Sosuke Suzuki
Reported 2024-07-21 02:28:31 PDT
According to the spec[1][2] and the test[3], Uint8Array.prototype.setFromBase64 throws a SyntaxError when encountering bad data but writes the decoded chunks prior to bad data. However, the current JSC discards the decoded data upon encountering bad data and throws an error. [1]: https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.prototype.setfrombase64 [2]: https://tc39.es/proposal-arraybuffer-base64/spec/#sec-frombase64 [3]: https://github.com/tc39/test262/blob/main/test/built-ins/Uint8Array/prototype/setFromBase64/writes-up-to-error.js
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Sosuke Suzuki
Comment 1 2024-07-21 02:31:20 PDT
Pull request: https://github.com/WebKit/WebKit/pull/31037
EWS
Comment 2 2024-07-21 12:30:35 PDT
Committed 281174@main (77046030809c): <https://commits.webkit.org/281174@main> Reviewed commits have been landed. Closing PR #31037 and removing active labels.
Radar WebKit Bug Importer
Comment 3 2024-07-21 12:31:14 PDT
<rdar://problem/132198988>
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