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The new Chromium-based Edge has been available as a beta for sometime and general availability of the final version is expected to ship from Jan 15. I think it makes sense to add it as a supported browser once it's out of beta. REF: https://blogs.windows.com/windowsexperience/2019/11/04/introducing-the-new-microsoft-edge-and-bing/
139 lines
6.4 KiB
Markdown
139 lines
6.4 KiB
Markdown
---
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layout: docs
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title: Browsers and devices
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description: Learn about the browsers and devices, from modern to old, that are supported by Bootstrap, including known quirks and bugs for each.
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group: getting-started
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toc: true
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---
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## Supported browsers
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Bootstrap supports the **latest, stable releases** of all major browsers and platforms. On Windows, **we support Internet Explorer 11 / Microsoft Edge**.
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Alternative browsers which use the latest version of WebKit, Blink, or Gecko, whether directly or via the platform's web view API, are not explicitly supported. However, Bootstrap should (in most cases) display and function correctly in these browsers as well. More specific support information is provided below.
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You can find our supported range of browsers and their versions [in our `.browserslistrc file`]({{< param repo >}}/blob/v{{< param current_version >}}/.browserslistrc):
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```text
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{{< rf.inline >}}
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{{- readFile ".browserslistrc" | htmlEscape -}}
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{{< /rf.inline >}}
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```
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We use [Autoprefixer](https://github.com/postcss/autoprefixer) to handle intended browser support via CSS prefixes, which uses [Browserslist](https://github.com/browserslist/browserslist) to manage these browser versions. Consult their documentation for how to integrate these tools into your projects.
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### Mobile devices
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Generally speaking, Bootstrap supports the latest versions of each major platform's default browsers. Note that proxy browsers (such as Opera Mini, Opera Mobile's Turbo mode, UC Browser Mini, Amazon Silk) are not supported.
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<table class="table">
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<thead>
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<tr>
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<th></th>
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<th>Chrome</th>
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<th>Firefox</th>
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<th>Safari</th>
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<th>Android Browser & WebView</th>
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<th>Microsoft Edge</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<th scope="row">Android</th>
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<td>Supported</td>
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<td>Supported</td>
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<td class="text-muted">—</td>
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<td>v6.0+</td>
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<td>Supported</td>
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</tr>
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<tr>
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<th scope="row">iOS</th>
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<td>Supported</td>
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<td>Supported</td>
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<td>Supported</td>
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<td class="text-muted">—</td>
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<td>Supported</td>
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</tr>
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<tr>
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<th scope="row" class="text-nowrap">Windows 10 Mobile</th>
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<td class="text-muted">—</td>
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<td class="text-muted">—</td>
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<td class="text-muted">—</td>
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<td class="text-muted">—</td>
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<td>Supported</td>
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</tr>
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</tbody>
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</table>
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### Desktop browsers
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Similarly, the latest versions of most desktop browsers are supported.
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<table class="table">
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<thead>
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<tr>
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<th></th>
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<th>Chrome</th>
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<th>Firefox</th>
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<th>Internet Explorer</th>
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<th>Microsoft Edge</th>
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<th>Opera</th>
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<th>Safari</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<th scope="row">Mac</th>
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<td>Supported</td>
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<td>Supported</td>
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<td class="text-muted">—</td>
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<td>Supported</td>
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<td>Supported</td>
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<td>Supported</td>
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</tr>
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<tr>
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<th scope="row">Windows</th>
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<td>Supported</td>
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<td>Supported</td>
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<td>IE11 only</td>
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<td>Supported</td>
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<td>Supported</td>
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<td class="text-muted">—</td>
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</tr>
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</tbody>
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</table>
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For Firefox, in addition to the latest normal stable release, we also support the latest [Extended Support Release (ESR)](https://www.mozilla.org/en-US/firefox/organizations/#faq) version of Firefox.
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Unofficially, Bootstrap should look and behave well enough in Chromium and Chrome for Linux, Firefox for Linux, and Internet Explorer 9, though they are not officially supported.
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## Internet Explorer
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Internet Explorer 11 is supported; IE10 and down is not. Please be aware that some CSS3 properties and HTML5 elements are not fully supported in IE10, or require prefixed properties for full functionality. Visit [Can I use...](https://caniuse.com/) for details on browser support of CSS3 and HTML5 features. **If you require IE8-9 support, use Bootstrap 3.**
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## Modals and dropdowns on mobile
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### Overflow and scrolling
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Support for `overflow: hidden;` on the `<body>` element is quite limited in iOS and Android. To that end, when you scroll past the top or bottom of a modal in either of those devices' browsers, the `<body>` content will begin to scroll. See [Chrome bug #175502](https://bugs.chromium.org/p/chromium/issues/detail?id=175502) (fixed in Chrome v40) and [WebKit bug #153852](https://bugs.webkit.org/show_bug.cgi?id=153852).
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### iOS text fields and scrolling
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As of iOS 9.2, while a modal is open, if the initial touch of a scroll gesture is within the boundary of a textual `<input>` or a `<textarea>`, the `<body>` content underneath the modal will be scrolled instead of the modal itself. See [WebKit bug #153856](https://bugs.webkit.org/show_bug.cgi?id=153856).
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### Navbar Dropdowns
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The `.dropdown-backdrop` element isn't used on iOS in the nav because of the complexity of z-indexing. Thus, to close dropdowns in navbars, you must directly click the dropdown element (or [any other element which will fire a click event in iOS](https://developer.mozilla.org/en-US/docs/Web/API/Element/click_event#Safari_Mobile)).
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## Browser zooming
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Page zooming inevitably presents rendering artifacts in some components, both in Bootstrap and the rest of the web. Depending on the issue, we may be able to fix it (search first and then open an issue if need be). However, we tend to ignore these as they often have no direct solution other than hacky workarounds.
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## Validators
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In order to provide the best possible experience to old and buggy browsers, Bootstrap uses [CSS browser hacks](http://browserhacks.com/) in several places to target special CSS to certain browser versions in order to work around bugs in the browsers themselves. These hacks understandably cause CSS validators to complain that they are invalid. In a couple places, we also use bleeding-edge CSS features that aren't yet fully standardized, but these are used purely for progressive enhancement.
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These validation warnings don't matter in practice since the non-hacky portion of our CSS does fully validate and the hacky portions don't interfere with the proper functioning of the non-hacky portion, hence why we deliberately ignore these particular warnings.
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Our HTML docs likewise have some trivial and inconsequential HTML validation warnings due to our inclusion of a workaround for [a certain Firefox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=654072).
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