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http://xhr.spec.whatwg.org/#suggested-names-for-events-using-the-progressevent-interface [[ The error, abort, and load event types are mutually exclusive. ]] Should this sentence and the table above it include the timeout event type? The “To handle errors for response run these substeps” portion of section 4.5.6 seems to indicate that error, abort, and timeout are mutually exclusive because they arise from different termination reasons. Also, the table in section 4.7 indicates that the timeout event is a ProgressEvent so it seems odd that it is missing from the table in Section 6.3: “Suggested names for events using the ProgressEvent interface”.
https://github.com/whatwg/xhr/commit/1f7ddfc8bbb4c0e9abb9fe020be92fdb36e4b3f9 https://github.com/whatwg/xhr/commit/08bbd1f93cb6d972dd52cc0464ef25d91489c6a3
Thanks!