2021-10-21 Workers Runtime Release Notes

Changes this week:

  • Added support for the signal option in EventTarget.addEventListener(), to remove an event listener in response to an AbortSignal.
  • The unhandledrejection and rejectionhandled events are now supported.
  • The ReadableStreamDefaultReader and ReadableStreamBYOBReader constructors are now supported.
  • Added non-standard ReadableStreamBYOBReader method .readAtLeast(size, buffer) that can be used to return a buffer with at least size bytes. The buffer parameter must be an ArrayBufferView. Behavior is identical to .read() except that at least size bytes are read, only returning fewer if EOF is encountered. One final call to .readAtLeast() is still needed to get back a done = true value.
  • The compatibility flags formdata_parser_supports_files, fetch_refuses_unknown_protocols, and durable_object_fetch_requires_full_url have been scheduled to be turned on by default as of 2021-11-03, 2021-11-10, and 2021-11-10, respectively. For more details, see: https://developers.cloudflare.com/workers/platform/compatibility-dates

yesss ty :orange_heart:
I need to update my blog soon

@Walshy, note that you can opt into these flags now. You don’t have to wait for them to become default. See compatibility_flags on https://developers.cloudflare.com/workers/platform/compatibility-dates

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Oh, I know :wink: - Handling File Uploads with Cloudflare Workers


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