Microsoft Edge Developer

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Please use the Feedback Hub (requires Windows 10) to submit your feedback in the Microsoft Edge category. This site is for web developer and designer feedback only. Other feedback will be closed without action.

“Yes, I’m a web developer or designer with feedback for the Microsoft Edge platform.”

Great! This site is where the Microsoft Edge team collects feature requests from the web developer and designer community in the categories listed to the right. For bugs on existing features, please log an issue on the Issue Tracker.

Your feedback will help us with planning and to better understand how web developers and designers are using the platform. Top standards-based feature requests will also be copied over to status.microsoftedge.com, where you can track its development status.

For the most actionable feedback, please search and up vote for existing suggestions before submitting a new suggestion, and create a separate suggestion per idea. Note that off topic or inappropriate suggestions may be moderated. The Microsoft Edge team will use suggestions as an important input, but there are several additional factors that inform the final roadmap.

A note from our lawyers: Please do not send any novel or patentable ideas, copyrighted materials, samples or demos which you do not want to grant a license to Microsoft. See the Terms of Service for more information.

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  1. Custom Elements

    Method for registering (creating) custom elements in script.

    Spec: http://www.w3.org/TR/custom-elements/

    14,140 votes
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    138 comments  ·  HTML  ·  Flag idea as inappropriate…  ·  Admin →
  2. Shadow DOM (unprefixed)

    Enables DOM tree encapsulation. Without it, widgets may inadvertently break pages by using conflicting CSS selectors, class or id names, or JavaScript variables.

    http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html

    13,499 votes
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    121 comments  ·  HTML  ·  Flag idea as inappropriate…  ·  Admin →
  3. APNG (animated PNG) images support [Firefox and Safari 8 support it]

    APNG is an extension of the Portable Network Graphics (PNG) format, adding support for animated images. It is intended to be a replacement for simple animated images that have traditionally used the GIF format, while adding support for 24-bit images and 8-bit transparency. APNG is backwards-compatible with PNG; any PNG decoder should be able to ignore the APNG-specific chunks and display a single image.

    GIF vs. APNG vs. animated WebP: http://littlesvr.ca/apng/gif_apng_webp.html
    Support status: http://caniuse.com/#feat=apng (Firefox and Safari 8 support APNG)
    Specification: https://developer.mozilla.org/en-US/docs/Animated_PNG_graphics

    11,479 votes
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    106 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
  4. HTML Imports

    Import HTML documents into other HTML documents.

    Spec: https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/imports/index.html

    8,810 votes
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    95 comments  ·  HTML  ·  Flag idea as inappropriate…  ·  Admin →
  5. Auto Update Older IE Versions

    Force older versions of Internet Explorer to automatically update.

    7,558 votes
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    62 comments  ·  Miscellaneous  ·  Flag idea as inappropriate…  ·  Admin →

    On December 15th of 2011 Microsoft made a big change that largely goes unnoticed by the vast majority of users; updates to Internet Explorer began to happen automatically.

    Today, Microsoft continues to install the latest updates for Internet Explorer supported by the user’s operating system without getting in the way. With Internet Explorer 10 we also added a UI control to the “About Internet Explorer” window which gave the end-user easier control over this process.

    Understandably there are some situations in which auto-updates are not desired. For instance, enterprise customers may (and do) choose to opt-out of these updates due to a reliance upon older versions of Internet Explorer internally.

    Tasked with supporting legacy applications, while also supporting the advancing web, the Internet Explorer team developed Enterprise Mode for Internet Explorer 11. This feature is designed to grant the user all of the security and speed of a modern browser,…

  6. WebP image format support

    WebP is an image format that provides lossless and lossy compression for images on the web.

    https://developers.google.com/speed/webp/docs/riff_container

    7,218 votes
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    74 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
  7. Server-Sent Events (EventSource)

    Enables push notifications from the server received as DOM events.

    http://dev.w3.org/html5/eventsource/

    7,191 votes
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    134 comments  ·  Networking  ·  Flag idea as inappropriate…  ·  Admin →
  8. Downloads API support for extensions

    Missing Downloads API support is not good. I wanted to port my extension but it relies on basic downloads API missing in Edge.

    7,108 votes
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    755 comments  ·  Extensions  ·  Flag idea as inappropriate…  ·  Admin →
  9. 5,162 votes
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    41 comments  ·  Media  ·  Flag idea as inappropriate…  ·  Admin →
  10. File API support for extensions

    One great addition to Edge extensions would be the ability to write files .

    There are of course security issues related to reading or writing files to the file system, but at some point, Edge will support the Downloads API (6 out of the 20 most popular Firefox extensions rely on this API). This API (chrome.downloads) allows to write a file to the Downloads folder out of an external URL. Why not then allow an extension to generate files limited to that folder ?

    That would allow saving videos (some streaming protocols need processing so the Downloads API is not…

    5,110 votes
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    321 comments  ·  Extensions  ·  Flag idea as inappropriate…  ·  Admin →
  11. MathML

    An application of XML for describing mathematical notations and capturing both its structure and content.

    http://www.w3.org/TR/MathML3/
    http://docs.webplatform.org/wiki/mathml

    4,395 votes
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    101 comments  ·  Flag idea as inappropriate…  ·  Admin →
  12. Implement the display: contents

    When using layout modes like flexbox and grid, there is a conflict between the desire to keep the DOM tree relatively flat, to avoid complex, unperformant, highly-nested layouts, and grouping elements in a way that makes sense semantically and allows easy manipulation via data-binding frameworks like Angular.

    This conflict can be solved by supporting the "display: contents" box-generation mode from CSS Display Module Level 3. This allows elements to be configured to generate no box of their own, only those of their children. In this way, complex, nested DOM structures can generate much simpler box trees.

    4,281 votes
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    228 comments  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
  13. RTC Data Channels

    Data channels allow a web application to send and receive generic application data peer-to-peer.

    This feature request is specifically about the *data channel* component of the WebRTC specification. This is separate from Object RTC and WebRTC 1.0 feature requests because the Platform Status site breaks out data channels separately.

    RTC Data Channels:

    Platform status: https://developer.microsoft.com/en-us/microsoft-edge/platform/status/rtcdatachannels/?q=data%20channels
    Uservoice: (this ticket)

    Object RTC:

    Platform status: https://developer.microsoft.com/en-us/microsoft-edge/platform/status/webrtcobjectrtcapi/?q=Object%20RTC
    UserVoice: https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6263666-webrtc-object-rtc-api

    WebRTC 1.0:

    Platform status: https://developer.microsoft.com/en-us/microsoft-edge/platform/status/webrtcwebrtcv10api/?q=WebRTC
    UserVoice: https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6508336-webrtc-webrtc-v1-0-api

    3,762 votes
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    21 comments  ·  Networking  ·  Flag idea as inappropriate…  ·  Admin →
  14. mix-blend-mode

    Provides a way to blend an HTML or SVG element with its backdrop.

    Spec: http://dev.w3.org/fxtf/compositing-1/

    2,977 votes
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    57 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
  15. Web Animations JavaScript API

    A unified model for supporting animation and synchronization on the Web platform.

    http://www.w3.org/TR/web-animations/

    2,830 votes
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    14 comments  ·  JavaScript  ·  Flag idea as inappropriate…  ·  Admin →
  16. Allow Edge to be updated on its own

    Microsoft isn’t updating Edge via the Store as originally promised. Edge updates seem to be held back for major new versions of Windows 10, unlike Windows 10’s other included apps, which are updated more regularly. A good example is the big Nov 2015 Windows update which is the only way to get Edge 25 with EdgeHTML 13 including the drag & drop file fix.

    As a web developer I can safely assume Firefox and Chrome users are on the latest version (we don't support the versions pre auto-update). I can't for Edge because major Windows updates are non-trivial and not…

    2,674 votes
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    28 comments  ·  Miscellaneous  ·  Flag idea as inappropriate…  ·  Admin →
  17. 2,468 votes
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    46 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
  18. CSS Masking

    Allows hiding of portions of a visible elements.

    Spec: https://dvcs.w3.org/hg/FXTF/raw-file/tip/css-masking-1/index.html

    2,393 votes
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    37 comments  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
  19. Dialog element

    This feature would add support for the <dialog> element to create in-page modal windows.

    https://html.spec.whatwg.org/multipage/forms.html#the-dialog-element

    2,315 votes
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    25 comments  ·  HTML  ·  Flag idea as inappropriate…  ·  Admin →
  20. Implement :focus-within from Selectors 4

    Tons of UIs include elements that are not visible unless the user interacts with their parent or ancestor. Think popup menus, delete or edit buttons, floating formatting toolbars, copy buttons, editing popups and so on. The list is endless. This is a good way to reduce visual clutter.
    However, this is often done in an inaccessible way, just by using :hover, because making it accessible requires JS, since :focus does not apply to ancestors. However, 1 in 2 people writing HTML/CSS are not comfortable with JavaScript so keyboard accessibility (and usability, as many of us are keyboard users by choice)…

    2,254 votes
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    29 comments  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
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