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Receiving WebSocket message over size limit throws generic runtime error #2667

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dpeek opened this issue Sep 6, 2024 · 0 comments
Open

Receiving WebSocket message over size limit throws generic runtime error #2667

dpeek opened this issue Sep 6, 2024 · 0 comments

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@dpeek
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dpeek commented Sep 6, 2024

While capturing a screenshot using @cloudflare/puppeteer and a remote Chrome instance, I got the following uncatchable errors from the runtime:

Uncaught (in promise) Error: internal error
Uncaught (async) Error: internal error

Running wrangler dev --log-level debug revealed the source of the error, the resulting image was too large to send as a WebSocket message:

workerd/jsg/util.c++:276: error: e = kj/compat/http.c++:5740: failed: WebSocket protocol error; protocolError.statusCode = 1009; protocolError.description = Message is too large: 2415121 > 1048576

It would be helpful if the resulting runtime error was more specific.
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@dpeek