[ci skip] Merge branch 'master' into 42923-close-issue

* master: (25 commits)
  Addressed mr observations
  Clean new Flash() and stop disabling no-new (eslint) when possible
  Disable query limiting warnings for now on GitLab.com
  Revert "Merge branch 'rd-40552-gitlab-should-check-if-keys-are-valid-before-saving' into 'master'"
  Fix warning messages for promoting labels and milestones
  Fixed missing js selector for the realtime pipelines commit comp
  Honour workhorse provided file name
  Create an empty wiki when there is no wiki in the gitlab export bundle
  Revert and remove header_title line from labels issue
  Fixed bug with param config
  changed params passed to from a string to an object
  Move IssuableTimeTracker vue component
  Fix breadcrumb on labels page for groups
  Convert groups_select ajax to use axios
  Default CI variables to unprotected
  make sure there is a dependency on Gitlab::CurrentSettings is
  Make GITLAB_FEATURES in build_spec compatible with EE
  Update jquery.waitforimages & use npm version
  Fixed typo, updated test, and removed commented code
  Replaced use of $.get with axios.get and updated tests
  ...

vendor/assets/javascripts/jquery.waitforimages.js

-/*
- * waitForImages 1.4
- * -----------------
- * Provides a callback when all images have loaded in your given selector.
- * http://www.alexanderdickson.com/
- *
- *
- * Copyright (c) 2011 Alex Dickson
- * Licensed under the MIT licenses.
- * See website for more info.
- *
- */
-
-;(function($) {
-    // Namespace all events.
-    var eventNamespace = 'waitForImages';
-
-    // CSS properties which contain references to images. 
-    $.waitForImages = {
-        hasImageProperties: [
-        'backgroundImage',
-        'listStyleImage',
-        'borderImage',
-        'borderCornerImage'
-        ]
-    };
-    
-    // Custom selector to find `img` elements that have a valid `src` attribute and have not already loaded.
-    $.expr[':'].uncached = function(obj) {
-        // Ensure we are dealing with an `img` element with a valid `src` attribute.
-        if ( ! $(obj).is('img[src!=""]')) {
-            return false;
-        }
-
-        // Firefox's `complete` property will always be`true` even if the image has not been downloaded.
-        // Doing it this way works in Firefox.
-        var img = document.createElement('img');
-        img.src = obj.src;
-        return ! img.complete;
-    };
-
-    $.fn.waitForImages = function(finishedCallback, eachCallback, waitForAll) {
-
-        // Handle options object.
-        if ($.isPlainObject(arguments[0])) {
-            eachCallback = finishedCallback.each;
-            waitForAll = finishedCallback.waitForAll;
-            finishedCallback = finishedCallback.finished;
-        }
-
-        // Handle missing callbacks.
-        finishedCallback = finishedCallback || $.noop;
-        eachCallback = eachCallback || $.noop;
-
-        // Convert waitForAll to Boolean
-        waitForAll = !! waitForAll;
-
-        // Ensure callbacks are functions.
-        if (!$.isFunction(finishedCallback) || !$.isFunction(eachCallback)) {
-            throw new TypeError('An invalid callback was supplied.');
-        };
-
-        return this.each(function() {
-            // Build a list of all imgs, dependent on what images will be considered.
-            var obj = $(this),
-                allImgs = [];
-
-            if (waitForAll) {
-                // CSS properties which may contain an image.
-                var hasImgProperties = $.waitForImages.hasImageProperties || [],
-                    matchUrl = /url\((['"]?)(.*?)\1\)/g;
-                
-                // Get all elements, as any one of them could have a background image.
-                obj.find('*').each(function() {
-                    var element = $(this);
-
-                    // If an `img` element, add it. But keep iterating in case it has a background image too.
-                    if (element.is('img:uncached')) {
-                        allImgs.push({
-                            src: element.attr('src'),
-                            element: element[0]
-                        });
-                    }
-
-                    $.each(hasImgProperties, function(i, property) {
-                        var propertyValue = element.css(property);
-                        // If it doesn't contain this property, skip.
-                        if ( ! propertyValue) {
-                            return true;
-                        }
-
-                        // Get all url() of this element.
-                        var match;
-                        while (match = matchUrl.exec(propertyValue)) {
-                            allImgs.push({
-                                src: match[2],
-                                element: element[0]
-                            });
-                        };
-                    });
-                });
-            } else {
-                // For images only, the task is simpler.
-                obj
-                 .find('img:uncached')
-                 .each(function() {
-                    allImgs.push({
-                        src: this.src,
-                        element: this
-                    });
-                });
-            };
-
-            var allImgsLength = allImgs.length,
-                allImgsLoaded = 0;
-
-            // If no images found, don't bother.
-            if (allImgsLength == 0) {
-                finishedCallback.call(obj[0]);
-            };
-
-            $.each(allImgs, function(i, img) {
-                
-                var image = new Image;
-                
-                // Handle the image loading and error with the same callback.
-                $(image).bind('load.' + eventNamespace + ' error.' + eventNamespace, function(event) {
-                    allImgsLoaded++;
-                    
-                    // If an error occurred with loading the image, set the third argument accordingly.
-                    eachCallback.call(img.element, allImgsLoaded, allImgsLength, event.type == 'load');
-                    
-                    if (allImgsLoaded == allImgsLength) {
-                        finishedCallback.call(obj[0]);
-                        return false;
-                    };
-                    
-                });
-
-                image.src = img.src;
-            });
-        });
-    };
-})(jQuery);

yarn.lock

@@ -4203,6 +4203,10 @@ jquery-ujs@1.2.2:
   dependencies:
     jquery ">=1.8.0"
+jquery.waitforimages@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/jquery.waitforimages/-/jquery.waitforimages-2.2.0.tgz#63f23131055a1b060dc913e6d874bcc9b9e6b16b"
+
 "jquery@>= 1.9.1", jquery@>=1.8.0, jquery@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/jquery/-/jquery-2.2.4.tgz#2c89d6889b5eac522a7eea32c14521559c6cbf02"
@@ -4397,6 +4401,12 @@ karma@^2.0.0:
     tmp "0.0.33"
     useragent "^2.1.12"
+katex@^0.8.3:
+  version "0.8.3"
+  resolved "https://registry.yarnpkg.com/katex/-/katex-0.8.3.tgz#909d99864baf964c3ccae39c4a99a8e0fb9a1bd0"
+  dependencies:
+    match-at "^0.1.0"
+
 kind-of@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.1.0.tgz#475d698a5e49ff5e53d14e3e732429dc8bf4cf47"
@@ -4787,6 +4797,10 @@ marked@^0.3.12:
   version "0.3.12"
   resolved "https://registry.yarnpkg.com/marked/-/marked-0.3.12.tgz#7cf25ff2252632f3fe2406bde258e94eee927519"
+match-at@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/match-at/-/match-at-0.1.1.tgz#25d040d291777704d5e6556bbb79230ec2de0540"
+
 math-expression-evaluator@^1.2.14:
   version "1.2.16"
   resolved "https://registry.yarnpkg.com/math-expression-evaluator/-/math-expression-evaluator-1.2.16.tgz#b357fa1ca9faefb8e48d10c14ef2bcb2d9f0a7c9"
@@ -7079,6 +7093,13 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
+style-loader@^0.19.1:
+  version "0.19.1"
+  resolved "https://registry.yarnpkg.com/style-loader/-/style-loader-0.19.1.tgz#591ffc80bcefe268b77c5d9ebc0505d772619f85"
+  dependencies:
+    loader-utils "^1.0.2"
+    schema-utils "^0.3.0"
+
 subarg@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"