[webkit-dev] Unprefixing Blob.webkitSlice() ?

[Kinuko Yasuda]

On Mon, Jun 11, 2012 at 3:34 PM, Darin Fisher <darin at chromium.org> wrote:

> Happy to see us support unprefixed too.  With other vendors on board, it
> seems like a straightforward addition to the platform.
>
> I'm not sure if you are proposing to also remove the prefixed form.  I'm
> not sure what it would take to remove the prefixed version.  We'd need some
> way to know when it is safe to remove it.  We could surely instrument the
> code to measure its use relative to the unprefixed form once it is widely
> deployed.
>

We've been shipping the prefixed version for a year now (in Chrome 11-19
and in Safari 5), so I propose keeping the prefixed version too for now,
but to start showing a deprecation message to encourage migration.

-Darin
>
>
> On Sun, Jun 10, 2012 at 11:17 PM, Kinuko Yasuda <kinuko at chromium.org>wrote:
>
>> Hi WebKit folks,
>>
>> We've been vendor-prefixing Blob.slice() since we changed the semantics
>> of slice() to make it alike Array.slice, i.e. from "start, length" to
>> "start, end" semantics in r83873 [1].  The non-prefixed version had only
>> been shipped in Chrome and must have helped apps migrate into the new
>> semantics.
>> However Mozilla has now unprefixed it since Gecko/FireFox 13.0 [2], Opera
>> said they are going to unprefix it with the new semantics [3] and IE
>> compatibility test has a set of Blob.slice tests which require unprefixed
>> slice [4].
>>
>> Maybe it's becoming a good time to unprefix slice() again?
>> https://bugs.webkit.org/show_bug.cgi?id=78111
>>
>> [1] http://trac.webkit.org/changeset/83873
>> [2]
>> https://developer.mozilla.org/en/DOM/Blob#Notes_on_the_slice()_implementations
>> [3] https://bugs.webkit.org/show_bug.cgi?id=78111
>> [4] http://samples.msdn.microsoft.com/ietestcenter/#fileapi
>>
>> Kinuko
>>
>>
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>>
>>
>
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