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Block uses of the JS Fetch API to send HTTP message bodies that are also valid IRC. The constraint on such messages is that they must begin with a valid HTTP verb; we can detect this and reject them immediately.
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This needs to be changelogged as a compatibility break because someone might actually be abusing this to send one-shot messages? I decided that a config to disable this would be cruft, but it's worth keeping an eye on things. |
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It looks like major browser vendors actually block this: |
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Block uses of the JS Fetch API to send HTTP message bodies that are also valid IRC. The constraint on such messages is that they must begin with a valid HTTP verb; we can detect this and reject them immediately.