Fix broken/redirected links, moving to HTTPS where possible. (twbs#20557)

Author: bardiharborow

Diff for: CHANGELOG.md

@@ -2,4 +2,4 @@ Bootstrap uses [GitHub's Releases feature](https://github.com/blog/1547-release-
 
 See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap.
 
-Release announcement posts on [the official Bootstrap blog](http://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.
+Release announcement posts on [the official Bootstrap blog](https://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.

Diff for: CONTRIBUTING.md

@@ -32,7 +32,7 @@ restrictions:
   [`Normalize`](https://github.com/necolas/normalize.css) (open them in
   its repository).
 
-* Please **do not** open issues regarding the official themes offered on <http://themes.getbootstrap.com/>.
+* Please **do not** open issues regarding the official themes offered on <https://themes.getbootstrap.com/>.
   Instead, please email any questions or feedback regarding those themes to `themes AT getbootstrap DOT com`.
 
 
@@ -61,7 +61,7 @@ Good bug reports are extremely helpful, so thanks!
 
 Guidelines for bug reports:
 
-0. **Validate and lint your code** &mdash; [validate your HTML](http://html5.validator.nu)
+0. **Validate and lint your code** &mdash; [validate your HTML](https://html5.validator.nu)
    and [lint your HTML](https://github.com/twbs/bootlint) to ensure your
    problem isn't caused by a simple error in your own code.
 
@@ -73,7 +73,7 @@ Guidelines for bug reports:
 
 3. **Isolate the problem** &mdash; ideally create a [reduced test
    case](https://css-tricks.com/reduced-test-cases/) and a live example.
-   [This JS Bin](http://jsbin.com/qusafa/edit?html,output) is a helpful template.
+   [This JS Bin](https://jsbin.com/qusafa/edit?html,output) is a helpful template.
 
 
 A good bug report shouldn't leave others needing to chase you up for more
@@ -104,7 +104,7 @@ Example:
 ### Reporting upstream browser bugs
 
 Sometimes bugs reported to us are actually caused by bugs in the browser(s) themselves, not bugs in Bootstrap per se.
-When feasible, we aim to report such upstream bugs to the relevant browser vendor(s), and then list them on our [Wall of Browser Bugs](http://getbootstrap.com/browser-bugs/) and [document them in MDN](https://developer.mozilla.org/en-US/docs/Web).
+When feasible, we aim to report such upstream bugs to the relevant browser vendor(s), and then list them on our [Wall of Browser Bugs](https://getbootstrap.com/browser-bugs/) and [document them in MDN](https://developer.mozilla.org/en-US/docs/Web).
 
 | Vendor(s)     | Browser(s)                   | Rendering engine | Bug reporting website(s)                                                              | Notes                                                    |
 | ------------- | ---------------------------- | ---------------- | ------------------------------------------------------------------------------------- | -------------------------------------------------------- |
@@ -232,16 +232,16 @@ includes code changes) and under the terms of the
 
 [Adhere to the Code Guide.](http://codeguide.co/#css)
 
-- When feasible, default color palettes should comply with [WCAG color contrast guidelines](http://www.w3.org/TR/WCAG20/#visual-audio-contrast).
-- Except in rare cases, don't remove default `:focus` styles (via e.g. `outline: none;`) without providing alternative styles. See [this A11Y Project post](http://a11yproject.com/posts/never-remove-css-outlines) for more details.
+- When feasible, default color palettes should comply with [WCAG color contrast guidelines](https://www.w3.org/TR/WCAG20/#visual-audio-contrast).
+- Except in rare cases, don't remove default `:focus` styles (via e.g. `outline: none;`) without providing alternative styles. See [this A11Y Project post](http://a11yproject.com/posts/never-remove-css-outlines/) for more details.
 
 ### JS
 
 - No semicolons (in client-side JS)
 - 2 spaces (no tabs)
 - strict mode
 - "Attractive"
-- Don't use [jQuery event alias convenience methods](https://github.com/jquery/jquery/blob/master/src/event/alias.js) (such as `$().focus()`). Instead, use [`$().trigger(eventType, ...)`](http://api.jquery.com/trigger/) or [`$().on(eventType, ...)`](http://api.jquery.com/on/), depending on whether you're firing an event or listening for an event. (For example, `$().trigger('focus')` or `$().on('focus', function (event) { /* handle focus event */ })`) We do this to be compatible with custom builds of jQuery where the event aliases module has been excluded.
+- Don't use [jQuery event alias convenience methods](https://github.com/jquery/jquery/blob/master/src/event/alias.js) (such as `$().focus()`). Instead, use [`$().trigger(eventType, ...)`](https://api.jquery.com/trigger/) or [`$().on(eventType, ...)`](https://api.jquery.com/on/), depending on whether you're firing an event or listening for an event. (For example, `$().trigger('focus')` or `$().on('focus', function (event) { /* handle focus event */ })`) We do this to be compatible with custom builds of jQuery where the event aliases module has been excluded.
 
 ### Checking coding style
 

Diff for: Gruntfile.js

@@ -1,6 +1,6 @@
 /*!
  * Bootstrap's Gruntfile
- * http://getbootstrap.com
+ * https://getbootstrap.com
  * Copyright 2013-2016 The Bootstrap Authors
  * Copyright 2013-2016 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)

Diff for: ISSUE_TEMPLATE.md

@@ -1,7 +1,7 @@
 Before opening an issue:
 
 - [Search for duplicate or closed issues](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue)
-- [Validate](http://validator.w3.org/nu/) and [lint](https://github.com/twbs/bootlint#in-the-browser) any HTML to avoid common problems
+- [Validate](https://validator.w3.org/nu/) and [lint](https://github.com/twbs/bootlint#in-the-browser) any HTML to avoid common problems
 - Prepare a [reduced test case](https://css-tricks.com/reduced-test-cases/) for any bugs
 - Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md)
 

Diff for: README.md

@@ -1,4 +1,4 @@
-# [Bootstrap](http://getbootstrap.com)
+# [Bootstrap](https://getbootstrap.com)
 
 [![Slack](https://bootstrap-slack.herokuapp.com/badge.svg)](https://bootstrap-slack.herokuapp.com)
 ![Bower version](https://img.shields.io/bower/v/bootstrap.svg)
@@ -14,7 +14,7 @@
 
 Bootstrap is a sleek, intuitive, and powerful front-end framework for faster and easier web development, created by [Mark Otto](https://twitter.com/mdo) and [Jacob Thornton](https://twitter.com/fat), and maintained by the [core team](https://github.com/orgs/twbs/people) with the massive support and involvement of the community.
 
-To get started, check out <http://getbootstrap.com>!
+To get started, check out <https://getbootstrap.com>!
 
 ## Table of contents
 
@@ -39,7 +39,7 @@ Several quick start options are available:
 - Install with [Bower](https://bower.io): `bower install bootstrap#v4.0.0-alpha.4`
 - Install with [NuGet](https://www.nuget.org): CSS: `Install-Package bootstrap -Pre` Sass: `Install-Package bootstrap.sass -Pre` (`-Pre` is only required until Bootstrap v4 has a stable release).
 
-Read the [Getting started page](http://getbootstrap.com/getting-started/) for information on the framework contents, templates and examples, and more.
+Read the [Getting started page](https://getbootstrap.com/getting-started/) for information on the framework contents, templates and examples, and more.
 
 ### What's included
 
@@ -67,7 +67,7 @@ Have a bug or a feature request? Please first read the [issue guidelines](https:
 
 ## Documentation
 
-Bootstrap's documentation, included in this repo in the root directory, is built with [Jekyll](http://jekyllrb.com) and publicly hosted on GitHub Pages at <http://getbootstrap.com>. The docs may also be run locally.
+Bootstrap's documentation, included in this repo in the root directory, is built with [Jekyll](https://jekyllrb.com) and publicly hosted on GitHub Pages at <https://getbootstrap.com>. The docs may also be run locally.
 
 ### Running documentation locally
 
@@ -76,11 +76,11 @@ Bootstrap's documentation, included in this repo in the root directory, is built
 3. From the root `/bootstrap` directory, run `bundle exec jekyll serve` in the command line.
 4. Open <http://localhost:9001> in your browser, and voilà.
 
-Learn more about using Jekyll by reading its [documentation](http://jekyllrb.com/docs/home/).
+Learn more about using Jekyll by reading its [documentation](https://jekyllrb.com/docs/home/).
 
 ### Documentation for previous releases
 
-Documentation for v2.3.2 has been made available for the time being at <http://getbootstrap.com/2.3.2/> while folks transition to Bootstrap 3.
+Documentation for v2.3.2 has been made available for the time being at <https://getbootstrap.com/2.3.2/> while folks transition to Bootstrap 3.
 
 [Previous releases](https://github.com/twbs/bootstrap/releases) and their documentation are also available for download.
 
@@ -101,7 +101,7 @@ Editor preferences are available in the [editor config](https://github.com/twbs/
 Get updates on Bootstrap's development and chat with the project maintainers and community members.
 
 - Follow [@getbootstrap on Twitter](https://twitter.com/getbootstrap).
-- Read and subscribe to [The Official Bootstrap Blog](http://blog.getbootstrap.com).
+- Read and subscribe to [The Official Bootstrap Blog](https://blog.getbootstrap.com).
 - Join [the official Slack room](https://bootstrap-slack.herokuapp.com).
 - Chat with fellow Bootstrappers in IRC. On the `irc.freenode.net` server, in the `##bootstrap` channel.
 - Implementation help may be found at Stack Overflow (tagged [`bootstrap-4`](https://stackoverflow.com/questions/tagged/bootstrap-4)).
@@ -113,7 +113,7 @@ Get updates on Bootstrap's development and chat with the project maintainers and
 
 For transparency into our release cycle and in striving to maintain backward compatibility, Bootstrap is maintained under [the Semantic Versioning guidelines](http://semver.org/). Sometimes we screw up, but we'll adhere to those rules whenever possible.
 
-See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap. Release announcement posts on [the official Bootstrap blog](http://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.
+See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap. Release announcement posts on [the official Bootstrap blog](https://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.
 
 
 ## Creators

Diff for: _config.yml

@@ -14,7 +14,7 @@ destination:      _gh_pages
 host:             0.0.0.0
 port:             9001
 baseurl:          ""
-url:              http://v4-alpha.getbootstrap.com
+url:              https://v4-alpha.getbootstrap.com
 encoding:         UTF-8
 exclude:          [assets/scss/]
 
@@ -39,9 +39,9 @@ download:
   source:         https://github.com/twbs/bootstrap/archive/v4.0.0-alpha.4.zip
   dist:           https://github.com/twbs/bootstrap/releases/download/v4.0.0-alpha.4/bootstrap-4.0.0-alpha.4-dist.zip
 
-blog:             http://blog.getbootstrap.com
-expo:             http://expo.getbootstrap.com
-themes:           http://themes.getbootstrap.com
+blog:             https://blog.getbootstrap.com
+expo:             https://expo.getbootstrap.com
+themes:           https://themes.getbootstrap.com
 
 cdn:
   # See https://www.srihash.org for info on how to generate the hashes

Diff for: bower.json

@@ -11,7 +11,7 @@
     "framework",
     "web"
   ],
-  "homepage": "http://getbootstrap.com",
+  "homepage": "https://getbootstrap.com",
   "license": "MIT",
   "moduleType": "globals",
   "main": [

Diff for: composer.json

@@ -11,7 +11,7 @@
     "framework",
     "web"
   ],
-  "homepage": "http://getbootstrap.com",
+  "homepage": "https://getbootstrap.com",
   "authors": [
     {
       "name": "Mark Otto",

Diff for: docs/_data/showcase.yml

@@ -1,19 +1,19 @@
 - name: Lyft
   url: https://www.lyft.com
-  expo_url: http://expo.getbootstrap.com/2014/10/29/lyft/
+  expo_url: https://expo.getbootstrap.com/2014/10/29/lyft/
   img: lyft
 
 - name: Vogue
   url: http://www.vogue.com
-  expo_url: http://expo.getbootstrap.com/2014/09/30/vogue/
+  expo_url: https://expo.getbootstrap.com/2014/09/30/vogue/
   img: vogue
 
 - name: Riot Design
   url: http://riotdesign.eu/en/
-  expo_url: http://expo.getbootstrap.com/2014/03/13/riot-design/
+  expo_url: https://expo.getbootstrap.com/2014/03/13/riot-design/
   img: riot
 
 - name: Newsweek
   url: http://www.newsweek.com/
-  expo_url: http://expo.getbootstrap.com/2014/02/12/newsweek/
+  expo_url: https://expo.getbootstrap.com/2014/02/12/newsweek/
   img: newsweek

Diff for: docs/_data/translations.yml

@@ -16,4 +16,4 @@
 - name: Brazilian Portuguese
   code: pt-BR
   description: Bootstrap 4 Português do Brasil
-  url: http://bootstrapbrasil.github.io/v4/
+  url: https://bootstrapbrasil.github.io/v4/

Diff for: docs/_includes/nav-docs.html

@@ -33,7 +33,7 @@
           {% endif %}
 
           <li class="{{ active }}">
-            <a href="{{ site.baseurl }}/{{ group.title | downcase | replace: ' ', '-' }}/{{ doc.title | downcase | replace: ' ', '-' | replace:'-&-','-' }}">
+            <a href="{{ site.baseurl }}/{{ group.title | downcase | replace: ' ', '-' }}/{{ doc.title | downcase | replace: ' ', '-' | replace:'-&-','-' }}/">
               {{ doc.title }}
             </a>
 

Diff for: docs/about/brand.md

@@ -5,7 +5,7 @@ description: Documentation and examples for Bootstrap's logo and brand usage gui
 group: about
 ---
 
-Have a need for Bootstrap's brand resources? Great! We have only a few guidelines we follow, and in turn ask you to follow as well. These guidelines were inspired by MailChimp's [Brand Assets](http://mailchimp.com/about/brand-assets/).
+Have a need for Bootstrap's brand resources? Great! We have only a few guidelines we follow, and in turn ask you to follow as well. These guidelines were inspired by MailChimp's [Brand Assets](https://mailchimp.com/about/brand-assets/).
 
 ## Mark and logo
 

Diff for: docs/assets/js/ie10-viewport-bug-workaround.js

@@ -6,7 +6,7 @@
  */
 
 // See the Getting Started docs for more information:
-// http://getbootstrap.com/getting-started/#support-ie10-width
+// https://getbootstrap.com/getting-started/#support-ie10-width
 
 (function () {
   'use strict';

Diff for: docs/assets/js/src/application.js

@@ -3,7 +3,7 @@
 // ++++++++++++++++++++++++++++++++++++++++++
 
 /*!
- * JavaScript for Bootstrap's docs (http://getbootstrap.com)
+ * JavaScript for Bootstrap's docs (https://getbootstrap.com)
  * Copyright 2011-2016 The Bootstrap Authors
  * Copyright 2011-2016 Twitter, Inc.
  * Licensed under the Creative Commons Attribution 3.0 Unported License. For

Diff for: docs/assets/scss/docs.scss

@@ -1,5 +1,5 @@
 /*!
- * Bootstrap Docs (http://getbootstrap.com)
+ * Bootstrap Docs (https://getbootstrap.com)
  * Copyright 2011-2016 The Bootstrap Authors
  * Copyright 2011-2016 Twitter, Inc.
  * Licensed under the Creative Commons Attribution 3.0 Unported License. For

Diff for: docs/browser-bugs.md

@@ -32,7 +32,7 @@ See also:
       <tr>
         <td>{{ bug.browser }}</td>
         <td>{{ bug.summary | markdownify | bugify }}</td>
-        <td>{{ bug.upstream_bug | bugify }}</td>
+        <td>{{ bug.upstream_bug | bugify }}</td>
         <td>{{ bug.origin | bugify }}</td>
       </tr>
       {% endfor %}

Diff for: docs/components/card.md

@@ -142,7 +142,7 @@ Using custom widths:
 
 ## Text alignment
 
-You can quickly change the text alignment of any card—in its entirety or specific parts—with our [text align classes]({{ site.baseurl }}/components/utilities/#text-alignment).
+You can quickly change the text alignment of any card—in its entirety or specific parts—with our [text align classes]({{ site.baseurl }}/utilities/typography/#text-alignment).
 
 {% example html %}
 <div class="card card-block">
@@ -435,7 +435,7 @@ In need of a colored card, but not the hefty background colors they bring? Repla
 
 ## Groups
 
-Use card groups to render cards as a single, attached element with equal width and height columns. By default, card groups use `display: table;` and `table-layout: fixed;` to achieve their uniform sizing. However, enabling [flexbox mode]({{ site.baseurl }}/getting-started/flexbox) can switch that to use `display: flex;` and provide the same effect.
+Use card groups to render cards as a single, attached element with equal width and height columns. By default, card groups use `display: table;` and `table-layout: fixed;` to achieve their uniform sizing. However, enabling [flexbox mode]({{ site.baseurl }}/getting-started/flexbox/) can switch that to use `display: flex;` and provide the same effect.
 
 Only applies to small devices and above.
 

Diff for: docs/components/carousel.md

@@ -5,7 +5,7 @@ description: A slideshow component for cycling through elements—images or slid
 group: components
 ---
 
-A slideshow component for cycling through elements—images or slides of text—like a carousel. In browsers where the [Page Visibility API](http://www.w3.org/TR/page-visibility/) is supported, the carousel will avoid sliding when the webpage is not visible to the user (such as when the browser tab is inactive, the browser window is minimized, etc.). **Nested carousels are not supported.**
+A slideshow component for cycling through elements—images or slides of text—like a carousel. In browsers where the [Page Visibility API](https://www.w3.org/TR/page-visibility/) is supported, the carousel will avoid sliding when the webpage is not visible to the user (such as when the browser tab is inactive, the browser window is minimized, etc.). **Nested carousels are not supported.**
 
 ## Contents
 

Diff for: docs/components/dropdowns.md

@@ -37,7 +37,7 @@ And with `<a>` elements:
 
 {% example html %}
 <div class="dropdown open">
-  <a class="btn btn-secondary dropdown-toggle" href="http://example.com" id="dropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+  <a class="btn btn-secondary dropdown-toggle" href="https://example.com" id="dropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
     Dropdown link
   </a>