Allow users of "invoke a callback function" to report the exception #1424
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This makes it more concise for users to, as is frequently desired for undefined-returning callbacks especially, immediately catch and report the exception rather than needing to handle it themselves. This isn't appropriate for other types of callback functions, where a result may be expected or the exception needs to be rethrown. Callers need to explicitly decide which behavior they want, unless the callback returns a promise type, in which case exceptions are turned into rejected promises implicitly. Fixes whatwg#1423.
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@domenic ptal? |
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This makes it more concise for users to, as is frequently desired for undefined-returning callbacks especially, immediately catch and report the exception rather than needing to handle it themselves.
This isn't appropriate for other types of callback functions, where a result may be expected or the exception needs to be rethrown. Callers need to explicitly decide which behavior they want, unless the callback returns a promise type, in which case exceptions are turned into rejected promises implicitly.
Fixes #1423.
(See WHATWG Working Mode: Changes for more details.)
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