Microsoft Edge Developer

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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.

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  1. 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…

    2,998 votes
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      208 comments  ·  Extensions  ·  Flag idea as inappropriate…  ·  Admin →
    • 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.

      4,077 votes
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        442 comments  ·  Extensions  ·  Flag idea as inappropriate…  ·  Admin →
      • Implement CSS `display: flow-root` (modern clearfix)

        `display: flow-root` is a modern way to force a block to be a formatting context that floated elements are contained in (aka clearfix).

        From the spec [1]:

        > The element generates a block container box, and lays out its contents using flow layout. It always establishes a new block formatting context for its contents.

        Tab Atkins and Elika Etemad (fantasai) from CSSWG consider the feature stable enough to be implemented [2].

        [1] https://drafts.csswg.org/css-display-3/#valdef-display-flow-root
        [2] https://discourse.wicg.io/t/1835/6

        36 votes
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          1 comment  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
        • At least allow Norton extensions

          Allow Norton extensions

          311 votes
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            98 comments  ·  Extensions  ·  Flag idea as inappropriate…  ·  Admin →
          • 20 votes
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              0 comments  ·  Security  ·  Flag idea as inappropriate…  ·  Admin →
            • Support FLAC

              Support playback of FLAC in the HTMLMediaElements.

              275 votes
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                2 comments  ·  Media  ·  Flag idea as inappropriate…  ·  Admin →
              • Support "wheel" events for 2-finger scrolling on Precision Touch Pads (like every other browser does, and every other trackpad does)

                Microsoft Edge is the only browser that doesn't support 2-finger scrolling properly. Sure, it scrolls the web page, but it doesn't fire wheel events. It instead just lets the OS handle it. This breaks critical functionality not only on the web, but also in many Windows 10 apps that are built using js/html (which is executed by the Edge engine). The biggest example is Flipboard, which doesn't let you "flip" through pages using the scroll gesture on the precision trackpad that Microsoft's own Hardware ships with (every Surface Pro / Book for the past 3+ years).

                To verify the problem,…

                168 votes
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                  1 comment  ·  JavaScript  ·  Flag idea as inappropriate…  ·  Admin →
                • Add support for multiple sessions

                  Add support for multiple sessions in Edge browser and add support via WebDriver as well.

                  52 votes
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                    0 comments  ·  Accessibility  ·  Flag idea as inappropriate…  ·  Admin →
                  • Ability to drag and drop images from the browser to desktop/folder

                    Most browsers support the ability to drag and drop images from the browser to a folder on your taskbar or on your desktop. This makes it easy to quickly save images from a webpage. The closest thing Edge is able to do now, is making a shortcut to the url of the image. Which of course doesn't help.

                    21 votes
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                      0 comments  ·  Media  ·  Flag idea as inappropriate…  ·  Admin →
                    • 47 votes
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                        0 comments  ·  JavaScript  ·  Flag idea as inappropriate…  ·  Admin →
                      • Edge should support the "always record developer console messages" setting in the Internet Options

                        The "always record developer console messages" setting in Internet Options is respected by IE but not Edge. This is the #1 reason why I do not use Edge for developing and testing my app. I don't always remember to hit F12 when testing and having all of my logs get lost because of this is a huge detractor.

                        19 votes
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                          1 comment  ·  F12 Developer Tools  ·  Flag idea as inappropriate…  ·  Admin →
                        • #rrggbbaa and #rgba color notation support

                          Couldn't find this anywhere here, so I'll post this feature request.

                          I'm asking for support of the following notations:

                          background-color: #12345678;

                          and

                          background-color: #1234;

                          Spec: https://drafts.csswg.org/css-color/#hex-notation

                          19 votes
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                            0 comments  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
                          • Implement DOM4 methods: prepend(), append(), before(), after() and replaceWith()

                            Steps to reproduce the problem:
                            1. Open the testcase http://jsbin.com/fiqacod/edit?html,js,output in Edge.

                            What is the expected behavior?
                            The test should pass.

                            What went wrong?
                            The test failed, indicating that Edge does not support the relevant DOM4 methods.

                            Specification: https://dom.spec.whatwg.org/#interface-childnode
                            Chrome Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=255482
                            Firefox Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=911477
                            Can I Use: http://caniuse.com/#feat=dom-manip-convenience

                            90 votes
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                              0 comments  ·  Document Object Model (DOM)  ·  Flag idea as inappropriate…  ·  Admin →
                            • Support TLS 1.3 with 1-RTT

                              TLS 1.3, the next version of security protocol for private and authenticated communication, is in the final phase of specification.
                              Cloudflare already supports it, Chrome 56 plans to support it January 2017 and Firefox in March 2017.
                              Edge should not stay behind and support TLS 1.3 with 1-RTT as well, ideally in the upcoming Creator's Update already.

                              18 votes
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                                0 comments  ·  Security  ·  Flag idea as inappropriate…  ·  Admin →
                              • Support the HTML Media Capture API

                                Full support for the HTML Media Capture specification (W3C Candidate Recommendation 2014). This would allow simple access to the native video camera using '<input type="file" name="video" accept="video/*" capture>' on Windows Phone.

                                Specification: https://www.w3.org/TR/html-media-capture/
                                (see "example 2" in spec)

                                At the moment, the only way to do this is to create your own camera using the navigator.getUserMedia implementation, which is more complex and can differ per platform (UI and logic). The simpler input capture type already works on iOS, Android, and Blackberry providing a fully-functional native camera with requisite platform-specific look and feel.

                                PS The HTML Media Capture API should not…

                                9 votes
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                                  0 comments  ·  HTML  ·  Flag idea as inappropriate…  ·  Admin →
                                • Implement sideways-rl and sideways-lr values for CSS Writing Modes.

                                  The Writing Mode property has been implemented and updated in the current version of Edge, but it only includes the values of horizontal-tb, vertical-lr and vertical-rl. Two more values provide an easier way for authors to typeset text in a sideways orientation. They are currently implemented in Firefox (since Sept 2015).

                                  https://www.w3.org/TR/css-writing-modes-3/#valdef-writing-mode-sideways-rl

                                  22 votes
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                                    0 comments  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Implement caret-color support

                                    "caret-color" has just been implemented on Chromium and Firefox. It'd be really nice if Edge can support it too.

                                    The spec is CR: https://www.w3.org/TR/css-ui-3/#caret-color

                                    And there are already 21 tests on the W3C csswg-test repo: http://test.csswg.org/shepherd/search/testcase/spec/css-ui-3/section/6.2.1/

                                    8 votes
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                                      0 comments  ·  CSS  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Native messaging!

                                      Please implement Native messaging mechanism! Internet Banking users are used to sign their contracts via a smart card (which uses WinCrypt API). Nowadays, after deprecation of applets, there is no other way to access Windows API and use a smart card in order to make a trusted digital signature.

                                      830 votes
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                                        22 comments  ·  Extensions  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Implement 'once' event listener option

                                        The DOM Standard defines a 'once' option for addEventListener() which causes the callback to only be called once, upon the next occurrence of the given event type, after which the listener gets automatically removed:
                                        https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-once

                                        The effect is similar to jQuery's popular $.one() method.

                                        CanIUse entry: http://caniuse.com/#feat=once-event-listener
                                        MDN article: https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Parameters

                                        4 votes
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                                          0 comments  ·  Document Object Model (DOM)  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Web NFC API

                                          This feature gives developers the ability to access Near Field Communication (NFC) functionality of a device, such as reading and writing NFC tags as well as exchanging data between NFC capable devices.

                                          Editor's draft
                                          https://w3c.github.io/web-nfc/

                                          30 votes
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                                            3 comments  ·  Media  ·  Flag idea as inappropriate…  ·  Admin →
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