769119 - new Blob([], null/undefined); shouldn't throw

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, defect)

Description

[Masatoshi Kimura [:emk]]

The Web IDL spec has been updated so that null or empty is treated as an empty dictionary.

Comment 1

[Masatoshi Kimura [:emk]]

> null or empty is treated
Correction: null or undefined is treated

Comment 2

[Boris Zbarsky [:bzbarsky]]

We just need to switch Blob to WebIDL bindings.  Then it would automatically pick up fixes like this...

Comment 3

[Boris Zbarsky [:bzbarsky]]

But I guess in the meantime we can update the old dictionary code to work with undefined and null?

Comment 4

[Masatoshi Kimura [:emk]]

Attachment: Bug 769119 - Treat null or undefined as an empty dictionary

Yeah, I believe this patch will suffice for a temporary solution until moving to New bindings.

Comment 5

[Olli Pettay [:smaug][[e-mail]]]

Could you add some tests for event ctors too.
Put them to content/events/test/test_eventctors.html

Comment 6

[Masatoshi Kimura [:emk]]

Attachment: Bug 769119 - Treat null or undefined as an empty dictionary

Added tests for event ctors.

Comment 7

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

https://hg.mozilla.org/integration/mozilla-inbound/rev/82de1c252339

Comment 8

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/82de1c252339

Comment 9

[Jean-Yves Perrier [:teoli]]

Doc updated:
https://developer.mozilla.org/en-US/docs/Web/API/Blob.Blob#Browser_compatibility
and
https://developer.mozilla.org/en-US/Firefox/Releases/16#API.2FDOM