View source for New Features Awaiting Implementation Interest

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.

<table class="wikitable">
<tr><th rowspan=2>Feature <th colspan=6>Interest indicated by... <th rowspan=2>Comments
<tr><th>Mozilla (Firefox) <th>Opera <th>Microsoft (IE) <th>Apple (Safari) <th>Google (Chrome) <th>Others
<tr>
 <td>[[AllowSeamless|Cross-origin seamless iframes]]
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Apr/0149.html Boris Zbarsky]
 <td>
 <td>
 <td>
 <td> Adam Barth
 <td>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0006.html Pending input on this thread]
<tr>
 <td>[https://bugzilla.mozilla.org/show_bug.cgi?id=803124 Canvas: isPointInStroke]
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0148.html Jeff Muizelaar]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0371.html HTMLCanvasElement.printCallback API]
 <td>Julian Viereck
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0107.html Metadata API for media elements]
 <td>Ralph Giles
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>Also needs a spec for the metadata schema
<tr>
 <td>[http://calculist.org/blog/2012/03/29/synchronous-module-loading-in-es6/ Adding defer/async to inline scripts]
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0290.html Jonas Sicking]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[[Meta_referrer|&lt;meta name="referrer">]]
 <td>
 <td>
 <td>
 <td>
 <td> Adam Barth
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0253.html Location.ancestorOrigins]
 <td>
 <td>
 <td>
 <td>
 <td> Already implemented
 <td>
 <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0259.html Negative feedback from Tobie Langel]
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0272.html A method to trigger autofill]
 <td>
 <td>
 <td>
 <td>
 <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]
 <td>
 <td>
<tr>
 <td>[http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-March/035065.html Prerendering APIs]
 <td>
 <td>
 <td>
 <td>
 <td> [http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/037833.html Gavin Peters]
 <td>
 <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).
<tr>
 <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>
 <td>
 <td>
 <td>
 <td> Rafael Weinstein
 <td>
 <td>
<tr>
 <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0274.html APIs for 'palpable' content] (at the bottom)
 <td>
 <td>
 <td>
 <td>
 <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0082.html Ojan Vofai]
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0532.html Some way to add files to <input type=file>]
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0153.html Jonas Sicking]
 <td>
 <td>
 <td>
 <td> Nico Weber
 <td>
 <td>
<tr>
 <td>Appcache: [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0345.html More detail in error events]
 <td>
 <td>
 <td>
 <td>
 <td> [http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/038185.html Michael Nordman]
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0088.html Making drawImage() have a mode to clamp at source rectangle]
 <td>
 <td>
 <td>
 <td>
 <td> Justin Novosad
 <td>
 <td>
<tr>
 <td>Appcache: [https://www.w3.org/Bugs/Public/show_bug.cgi?id=20083 Interceptor Worker]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td> Needs use cases as well
<tr>
 <td>[[FormData]]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2010Jul/0238.html Canvas: Stroke alignment]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2013Jan/0073.html Canvas: Page flipping for the 2D context]
 <td>
 <td>
 <td>
 <td>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2013Jan/0098.html James Robinson]
 <td>
 <td>
<tr>
 <td>[http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/038079.html Canvas: control over when shadows paint]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0138.html &lt;img srcset>: a mechanism to enable adaptive images]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=17859 locale=""]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0238.html <video> currentTime and seek using rational numbers]
 <td>
 <td>
 <td>
 <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0232.html Jer Noble]
 <td>
 <td>
 <td> Would expose the video's timebase, too, assuming it's constant. See also next line.
<tr>
 <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>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0384.html Exception object as fifth argument to onerror]
 <td>
 <td> zcorpan?
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0617.html Cross-origin workers]
 <td>
 <td>
 <td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0647.html Travis Leithead?]
 <td>
 <td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0618.html Ojan Vafai]
 <td>
 <td>
<tr>
 <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=17842 Deferring &lt;img> loads until the image is needed]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
<tr>
 <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)]
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
 <td>
</table>

See also: [[Who to ask about stuff]]

[[Category:Implementations]]
[[Category:Spec coordination]]