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New Features Awaiting Implementation Interest: Difference between revisions

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<tr><th>Mozilla (Firefox) <th>Opera <th>Microsoft (IE) <th>Apple (Safari) <th>Google (Chrome) <th>Others
<tr><th>Mozilla (Firefox) <th>Opera <th>Microsoft (IE) <th>Apple (Safari) <th>Google (Chrome) <th>Others
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Jan/0082.html Progress events on &lt;img> elements]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22682 Some way to add files to <input type=file>]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Jan/0195.html Jonas Sicking]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0153.html Jonas Sicking]
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<td>[http://lists.webkit.org/pipermail/webkit-dev/2012-January/019182.html Dean Jackson]
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<td> Nico Weber
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  <td>Will likely be added soon
  <td> On track for spec
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  <td>[[AllowSeamless|Cross-origin seamless iframes]]
  <td>[[AllowSeamless|Cross-origin seamless iframes]]
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0006.html Pending input on this thread]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0006.html Pending input on this thread]
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  <td>[https://bugzilla.mozilla.org/show_bug.cgi?id=803124 Canvas: isPointInStroke]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22698 HTMLCanvasElement.printCallback API]
<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0148.html Jeff Muizelaar]
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<td>[https://bugzilla.mozilla.org/show_bug.cgi?id=655926 Canvas: fillRule]
<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2011Jun/0123.html Chris Jones]
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0371.html HTMLCanvasElement.printCallback API]
  <td>Julian Viereck
  <td>Julian Viereck
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  <td>Also needs a spec for the metadata schema
  <td>Also needs a spec for the metadata schema
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  <td>[http://calculist.org/blog/2012/03/29/synchronous-module-loading-in-es6/ Adding defer/async to inline scripts]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22696 Adding defer/async to inline scripts]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0290.html Jonas Sicking]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0290.html Jonas Sicking]
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  <td>[[Meta_referrer|&lt;meta name="referrer">]]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22675 &lt;meta name="referrer">]
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0272.html A method to trigger autofill]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22699 Location.ancestorOrigins]
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<td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Oct/0231.html Elliott Sprehn], [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0289.html Peter Kasting]
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<td> Already implemented
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<td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0259.html Negative feedback from Tobie Langel]
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  <td>[http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-March/035065.html Prerendering APIs]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22701 A method to trigger autofill]
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  <td> Gavin Peters
  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Oct/0231.html Elliott Sprehn], [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0289.html Peter Kasting]
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  <td> [http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html &lt;template>] [https://www.w3.org/Bugs/Public/show_bug.cgi?id=17930 (bug)]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22676 Prerendering APIs]
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  <td> Rafael Weinstein
  <td> [http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/037833.html Gavin Peters]
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<td> Needs detailed specification work to describe what happens with scripts running in the prerender context (since normally scripts can't run in non-active documents, and normally there's only one active document per session history).
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  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0274.html APIs for 'palpable' content] (at the bottom)
  <td> [https://www.w3.org/Bugs/Public/show_bug.cgi?id=22697 APIs for 'palpable' content] (at the bottom)
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  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0082.html Ojan Vofai]
  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0082.html Ojan Vofai]
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0532.html Some way to add files to <input type=file>]
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<td> Nico Weber
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  <td> Justin Novosad
  <td> Justin Novosad
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  <td> There is a workaround using ImageBitmaps to extract a subregions of the source image. The workaround does not solve cases where sub-region extraction needs to be synchronous either because the source image content changes over time (e.g a canvas or video), or because the subrectangle coordinates cannot be determined in advance.
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  <td>[http://whatwg.org/html/#the-menu-element The &lt;menu> feature with many elements providing commands]
  <td>Appcache: [https://www.w3.org/Bugs/Public/show_bug.cgi?id=20083 Interceptor Worker]
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  <td>Need feedback: [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0369.html 1] [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0046.html 2]
  <td> Needs use cases as well
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  <td>Appcache: [https://www.w3.org/Bugs/Public/show_bug.cgi?id=20083 Interceptor Worker]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22680 FormData]
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<td> Needs use cases as well
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  <td>[[FormData]]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22674 Canvas: Stroke alignment]
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2010Jul/0238.html Canvas: Stroke alignment]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2013Jan/0073.html Canvas: Page flipping for the 2D context]
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2013Jan/0098.html James Robinson]
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  <td>[https://bugs.webkit.org/show_bug.cgi?id=110252 Implemented]
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0001.html video source material metrics] (e.g. frame rate for fixed-frame-rate video data)
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0238.html <video> currentTime and seek using rational numbers]
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0232.html Jer Noble]
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<td> Would expose the video's timebase, too, assuming it's constant. See also next line.
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<td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22678 video source material metrics] (e.g. frame rate for fixed-frame-rate video data)
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<td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0384.html Exception object as fifth argument to onerror]
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<td> zcorpan?
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0272.html API to request Web Worker latency guarantees (in exchange for guaranteeing low CPU usage)]
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2010Oct/0024.html SearchBox API]
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<td> Tony Gentilcore
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<td> No longer being tracked.
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Latest revision as of 23:42, 6 September 2013

There are features that have been requested, but for which we are lacking implementor interest. Without two or more vendors interested in implementing the feature, they are unlikely to get added to the specs.

Feature Interest indicated by... Comments
Mozilla (Firefox) Opera Microsoft (IE) Apple (Safari) Google (Chrome) Others
Some way to add files to <input type=file> Jonas Sicking Nico Weber On track for spec
Cross-origin seamless iframes Boris Zbarsky Adam Barth Pending input on this thread
HTMLCanvasElement.printCallback API Julian Viereck
Metadata API for media elements Ralph Giles Also needs a spec for the metadata schema
Adding defer/async to inline scripts Jonas Sicking
<meta name="referrer"> Adam Barth
Location.ancestorOrigins Already implemented Negative feedback from Tobie Langel
A method to trigger autofill Elliott Sprehn, Peter Kasting
Prerendering APIs Gavin Peters Needs detailed specification work to describe what happens with scripts running in the prerender context (since normally scripts can't run in non-active documents, and normally there's only one active document per session history).
APIs for 'palpable' content (at the bottom) Ojan Vofai
Appcache: More detail in error events Michael Nordman
Making drawImage() have a mode to clamp at source rectangle Justin Novosad There is a workaround using ImageBitmaps to extract a subregions of the source image. The workaround does not solve cases where sub-region extraction needs to be synchronous either because the source image content changes over time (e.g a canvas or video), or because the subrectangle coordinates cannot be determined in advance.
Appcache: Interceptor Worker Needs use cases as well
FormData
Canvas: Stroke alignment
Canvas: Page flipping for the 2D context James Robinson
Canvas: control over when shadows paint
<img srcset>: a mechanism to enable adaptive images Implemented
locale=""
<video> currentTime and seek using rational numbers Jer Noble Would expose the video's timebase, too, assuming it's constant. See also next line.
video source material metrics (e.g. frame rate for fixed-frame-rate video data)
Cross-origin workers Travis Leithead? Ojan Vafai
Deferring <img> loads until the image is needed
API to request Web Worker latency guarantees (in exchange for guaranteeing low CPU usage)
SearchBox API Tony Gentilcore No longer being tracked.

See also: Who to ask about stuff

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