Mention current Wasm Worker limitations in the docs. NFC#26376
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sbc100 merged 1 commit intoemscripten-core:mainfrom Mar 2, 2026
Merged
Mention current Wasm Worker limitations in the docs. NFC#26376sbc100 merged 1 commit intoemscripten-core:mainfrom
sbc100 merged 1 commit intoemscripten-core:mainfrom
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dschuff
approved these changes
Mar 2, 2026
| Some standard C++ APIs are not available under Wasm Workers | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
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| Some parts of the libc++ stndard library are not available under Wasm Workers |
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I guess we are now in a place where these will crash rather than silently failing to synchronize, right?
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They will simply fail to link with undefined symbols as of #26336.
We still have an issue in builds with contains both pthreads and Wasm Workers. In those builds you will still get undefined behaviour if you try to call the pthread functions from a Wasm Worker.
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This just documents the current limitations.
See #26375