Merge branch 'v4-dev' into patch-5

9 files changed, 101 insertions, 10 deletions

diff --git a/.gitignore b/.gitignore
index 1e00d3dd4..b78c3a0fb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,8 +44,9 @@ scss-lint-report.xml
 # grunt-contrib-sass cache
 .sass-cache
 
-# Jekyll metadata
+# Jekyll metadata and extra config file for `github` script
 docs/.jekyll-metadata
+twbsconfig.yml
 
 # Folders to ignore
 bower_components
diff --git a/build/postcss.config.js b/build/postcss.config.js
index aef4679fa..cadd98d03 100644
--- a/build/postcss.config.js
+++ b/build/postcss.config.js
@@ -9,7 +9,7 @@ module.exports = (ctx) => ({
       browsers: [
         //
         // Official browser support policy:
-        // https://v4-alpha.getbootstrap.com/getting-started/browsers-devices/#supported-browsers
+        // https://getbootstrap.com/docs/4.0/getting-started/browsers-devices/#supported-browsers
         //
         'Chrome >= 45', // Exact version number here is kinda arbitrary
         'Firefox ESR',
diff --git a/docs/4.0/components/collapse.md b/docs/4.0/components/collapse.md
index c77d436fb..9e889efb2 100644
--- a/docs/4.0/components/collapse.md
+++ b/docs/4.0/components/collapse.md
@@ -216,7 +216,7 @@ $('#myCollapsible').collapse({
 
 #### `.collapse('toggle')`
 
-Toggles a collapsible element to shown or hidden. **Returns to the caller before the collapsible element has actually been shown or hidden (i.e. before the `shown.bs.collapse` or `hidden.bs.collapse` event occurs).
+Toggles a collapsible element to shown or hidden. **Returns to the caller before the collapsible element has actually been shown or hidden** (i.e. before the `shown.bs.collapse` or `hidden.bs.collapse` event occurs).
 
 #### `.collapse('show')`
 
diff --git a/docs/4.0/components/list-group.md b/docs/4.0/components/list-group.md
index 8dc25a0dc..5fad36d5a 100644
--- a/docs/4.0/components/list-group.md
+++ b/docs/4.0/components/list-group.md
@@ -56,7 +56,7 @@ Be sure to **not use the standard `.btn` classes here**.
 
 {% example html %}
 <div class="list-group">
-  <a href="#" class="list-group-item active">
+  <a href="#" class="list-group-item list-group-item-action active">
     Cras justo odio
   </a>
   <a href="#" class="list-group-item list-group-item-action">Dapibus ac facilisis in</a>
diff --git a/js/src/modal.js b/js/src/modal.js
index d21a137fb..ab73230c8 100644
--- a/js/src/modal.js
+++ b/js/src/modal.js
@@ -68,6 +68,7 @@ const Modal = (($) => {
     DATA_TOGGLE        : '[data-toggle="modal"]',
     DATA_DISMISS       : '[data-dismiss="modal"]',
     FIXED_CONTENT      : '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
+    STICKY_CONTENT     : '.sticky-top',
     NAVBAR_TOGGLER     : '.navbar-toggler'
   }
 
@@ -441,6 +442,13 @@ const Modal = (($) => {
           $(element).data('padding-right', actualPadding).css('padding-right', `${parseFloat(calculatedPadding) + this._scrollbarWidth}px`)
         })
 
+        // Adjust sticky content margin
+        $(Selector.STICKY_CONTENT).each((index, element) => {
+          const actualMargin = $(element)[0].style.marginRight
+          const calculatedMargin = $(element).css('margin-right')
+          $(element).data('margin-right', actualMargin).css('margin-right', `${parseFloat(calculatedMargin) - this._scrollbarWidth}px`)
+        })
+
         // Adjust navbar-toggler margin
         $(Selector.NAVBAR_TOGGLER).each((index, element) => {
           const actualMargin = $(element)[0].style.marginRight
@@ -464,8 +472,8 @@ const Modal = (($) => {
         }
       })
 
-      // Restore navbar-toggler margin
-      $(Selector.NAVBAR_TOGGLER).each((index, element) => {
+      // Restore sticky content and navbar-toggler margin
+      $(`${Selector.STICKY_CONTENT}, ${Selector.NAVBAR_TOGGLER}`).each((index, element) => {
         const margin = $(element).data('margin-right')
         if (typeof margin !== 'undefined') {
           $(element).css('margin-right', margin).removeData('margin-right')
diff --git a/js/src/util.js b/js/src/util.js
index 69fb8283c..cd3f1fb6a 100644
--- a/js/src/util.js
+++ b/js/src/util.js
@@ -117,7 +117,7 @@ const Util = (($) => {
       }
 
       try {
-        const $selector = $(selector)
+        const $selector = $(document).find(selector)
         return $selector.length > 0 ? selector : null
       } catch (error) {
         return null
diff --git a/js/tests/unit/modal.js b/js/tests/unit/modal.js
index 09c352443..5b265df15 100644
--- a/js/tests/unit/modal.js
+++ b/js/tests/unit/modal.js
@@ -433,6 +433,48 @@ $(function () {
       .bootstrapModal('show')
   })
 
+  QUnit.test('should adjust the inline margin of sticky elements when opening and restore when closing', function (assert) {
+    assert.expect(2)
+    var done = assert.async()
+    var $element = $('<div class="sticky-top"></div>').appendTo('#qunit-fixture')
+    var originalPadding = $element.css('margin-right')
+
+    $('<div id="modal-test"/>')
+      .on('hidden.bs.modal', function () {
+        var currentPadding = $element.css('margin-right')
+        assert.strictEqual(currentPadding, originalPadding, 'sticky element margin should be reset after closing')
+        $element.remove()
+        done()
+      })
+      .on('shown.bs.modal', function () {
+        var expectedPadding = parseFloat(originalPadding) - $(this).getScrollbarWidth() + 'px'
+        var currentPadding = $element.css('margin-right')
+        assert.strictEqual(currentPadding, expectedPadding, 'sticky element margin should be adjusted while opening')
+        $(this).bootstrapModal('hide')
+      })
+      .bootstrapModal('show')
+  })
+
+  QUnit.test('should store the original margin of sticky elements in data-margin-right before showing', function (assert) {
+    assert.expect(2)
+    var done = assert.async()
+    var $element = $('<div class="sticky-top"></div>').appendTo('#qunit-fixture')
+    var originalPadding = '0px'
+    $element.css('margin-right', originalPadding)
+
+    $('<div id="modal-test"/>')
+      .on('hidden.bs.modal', function () {
+        assert.strictEqual(typeof $element.data('margin-right'), 'undefined', 'data-margin-right should be cleared after closing')
+        $element.remove()
+        done()
+      })
+      .on('shown.bs.modal', function () {
+        assert.strictEqual($element.data('margin-right'), originalPadding, 'original sticky element margin should be stored in data-margin-right')
+        $(this).bootstrapModal('hide')
+      })
+      .bootstrapModal('show')
+  })
+
   QUnit.test('should adjust the inline margin of the navbar-toggler when opening and restore when closing', function (assert) {
     assert.expect(2)
     var done = assert.async()
@@ -555,4 +597,40 @@ $(function () {
       })
       .trigger('click')
   })
+
+  QUnit.test('should not parse target as html', function (assert) {
+    assert.expect(1)
+    var done = assert.async()
+
+    var $toggleBtn = $('<button data-toggle="modal" data-target="&lt;div id=&quot;modal-test&quot;&gt;&lt;div class=&quot;contents&quot;&lt;div&lt;div id=&quot;close&quot; data-dismiss=&quot;modal&quot;/&gt;&lt;/div&gt;&lt;/div&gt;"/>')
+      .appendTo('#qunit-fixture')
+
+    $toggleBtn.trigger('click')
+    setTimeout(function () {
+      assert.strictEqual($('#modal-test').length, 0, 'target has not been parsed and added to the document')
+      done()
+    }, 1)
+  })
+
+  QUnit.test('should not execute js from target', function (assert) {
+    assert.expect(0)
+    var done = assert.async()
+
+    // This toggle button contains XSS payload in its data-target
+    // Note: it uses the onerror handler of an img element to execute the js, because a simple script element does not work here
+    //       a script element works in manual tests though, so here it is likely blocked by the qunit framework
+    var $toggleBtn = $('<button data-toggle="modal" data-target="&lt;div&gt;&lt;image src=&quot;missing.png&quot; onerror=&quot;$(&apos;#qunit-fixture button.control&apos;).trigger(&apos;click&apos;)&quot;&gt;&lt;/div&gt;"/>')
+      .appendTo('#qunit-fixture')
+    // The XSS payload above does not have a closure over this function and cannot access the assert object directly
+    // However, it can send a click event to the following control button, which will then fail the assert
+    $('<button>')
+      .addClass('control')
+      .on('click', function () {
+        assert.notOk(true, 'XSS payload is not executed as js')
+      })
+      .appendTo('#qunit-fixture')
+
+    $toggleBtn.trigger('click')
+    setTimeout(done, 500)
+  })
 })
diff --git a/js/tests/visual/modal.html b/js/tests/visual/modal.html
index c9a950b8c..da9bbf93a 100644
--- a/js/tests/visual/modal.html
+++ b/js/tests/visual/modal.html
@@ -167,6 +167,10 @@
       <div class="bg-dark text-white p-2" id="tall" style="display: none;">
         Tall body content to force the page to have a scrollbar.
       </div>
+
+      <button type="button" class="btn btn-secondary btn-lg" data-toggle="modal" data-target="&#x3C;div class=&#x22;modal fade the-bad&#x22; tabindex=&#x22;-1&#x22; role=&#x22;dialog&#x22;&#x3E;&#x3C;div class=&#x22;modal-dialog&#x22; role=&#x22;document&#x22;&#x3E;&#x3C;div class=&#x22;modal-content&#x22;&#x3E;&#x3C;div class=&#x22;modal-header&#x22;&#x3E;&#x3C;button type=&#x22;button&#x22; class=&#x22;close&#x22; data-dismiss=&#x22;modal&#x22; aria-label=&#x22;Close&#x22;&#x3E;&#x3C;span aria-hidden=&#x22;true&#x22;&#x3E;&#x26;times;&#x3C;/span&#x3E;&#x3C;/button&#x3E;&#x3C;h4 class=&#x22;modal-title&#x22;&#x3E;The Bad Modal&#x3C;/h4&#x3E;&#x3C;/div&#x3E;&#x3C;div class=&#x22;modal-body&#x22;&#x3E;This modal&#x27;s HTTML source code is declared inline, inside the data-target attribute of it&#x27;s show-button&#x3C;/div&#x3E;&#x3C;/div&#x3E;&#x3C;/div&#x3E;&#x3C;/div&#x3E;">
+        Modal with an XSS inside the data-target
+      </button>
     </div>
 
     <script src="../../../assets/js/vendor/jquery-slim.min.js"></script>
diff --git a/package.json b/package.json
index 92ec1b3aa..640099946 100644
--- a/package.json
+++ b/package.json
@@ -28,10 +28,10 @@
     "css-prefix-docs": "postcss --config build/postcss.config.js --no-map --replace assets/css/docs.min.css",
     "css-minify": "cleancss --level 1 --source-map --source-map-inline-sources --output dist/css/bootstrap.min.css dist/css/bootstrap.css && cleancss --level 1 --source-map --source-map-inline-sources --output dist/css/bootstrap-grid.min.css dist/css/bootstrap-grid.css && cleancss --level 1 --source-map --source-map-inline-sources --output dist/css/bootstrap-reboot.min.css dist/css/bootstrap-reboot.css",
     "css-minify-docs": "cleancss --level 1 --source-map --source-map-inline-sources --output assets/css/docs.min.css assets/css/docs.min.css",
-    "js": "npm-run-all js-lint js-compile js-minify",
+    "js": "npm-run-all js-lint* js-compile js-minify",
     "js-docs": "npm-run-all js-lint-docs js-minify-docs",
     "js-lint": "eslint js/ && eslint --config js/tests/.eslintrc.json --env node build/ Gruntfile.js",
-    "js-lint-docs": "eslint --config js/tests/.eslintrc.json assets/js/",
+    "js-lint-docs": "eslint --config js/tests/.eslintrc.json assets/js/ sw.js",
     "js-compile": "npm-run-all --parallel js-compile-*",
     "js-compile-bundle": "shx cat js/src/util.js js/src/alert.js js/src/button.js js/src/carousel.js js/src/collapse.js js/src/dropdown.js js/src/modal.js js/src/scrollspy.js js/src/tab.js js/src/tooltip.js js/src/popover.js | shx sed \"s/^(import|export).*//\" | babel --filename js/src/bootstrap.js | node build/stamp.js > dist/js/bootstrap.js",
     "js-compile-plugins": "babel js/src/ --out-dir js/dist/ --source-maps",
@@ -43,7 +43,7 @@
     "docs-lint": "htmllint --rc build/.htmllintrc _gh_pages/*.html _gh_pages/**/*.html js/tests/visual/*.html",
     "docs-compile": "bundle exec jekyll build",
     "docs-serve": "bundle exec jekyll serve",
-    "docs-github": "shx echo 'github: true' > $npm_config_tmp/twbsconfig.yml && npm run docs-compile -- --config _config.yml,$npm_config_tmp/twbsconfig.yml && shx rm $npm_config_tmp/twbsconfig.yml",
+    "docs-github": "shx echo \"github: true\" > twbsconfig.yml && npm run docs-compile -- --config _config.yml,twbsconfig.yml && shx rm ./twbsconfig.yml",
     "docs-upload-preview": "build/upload-preview.sh",
     "maintenance-dependencies": "ncu -a -x jquery && npm update && bundle update && shx echo 'Manually update assets/js/vendor/*, js/tests/vendor/*, bower.json and .travis.yml'",
     "release-version": "node build/change-version.js",