Bug report

User pain Issue Created
75% details#1797438: HTML5 validation is preventing form submit and not fully accessible 2012-09-28
75% details#2912732: Table Drag always showing lines 2017-09-29
64% details#1870006: HTML5 validation with table sticky header is misaligned over the toolbar 2012-12-19
64% details#2616184: Right click should not work on submit buttons with Ajax behaviors 2015-11-16
60% details#2235977: JS Client-side file validation is broken (because ajaxPageState is broken?) 2014-07-11
60% details#2301527: Client side file extension validation for managed files fails on Internet Explorer 11 2014-09-24
60% details#2624496: "Edit summary" button broken if text area with a summary has description 2015-11-27
60% details#2725255: Unfiltered data in "Allowed HTML tags" 2016-05-14
57% details#2884052: Uploading a managed file on a custom form that allows multiple files also triggers the remove button which results in a duplicate temporary… 2017-06-06
54% details#736066: ajax.js insert command sometimes wraps content in a div, potentially producing invalid HTML and other bugs 2010-03-09
54% details#1988968: Drupal.ajax does not guarantee that "add new JS file to page" commands have finished before calling said JS 2013-05-08
54% details#2493957: Add back errors & summary support to native HTML5 details tag 2015-05-23
51% details#2666746: [PERFORMANCE] Simultaneous file uploads re-posting data 2016-02-11
50% details#2582797: [Regression] login link has no destination=drupalSettings.path, so dumps you on the profile 2015-10-08
50% details#2792593: Details HTML element does not work without .details-wrapper 2016-08-30
45% details#2725259: [regression] Table Drag handles no longer respond to up/down arrow keys 2016-05-14
43% details#2141055: When multiple instances of the same entity on one page, only the first can be edited 2013-11-21
43% details#2203415: Verify/fix missing dependencies in libraries 2014-02-24
43% details#2384153: Node preview bar should re-calculate BODY padding-top, otherwise user menu (top of page) is obscured 2014-11-29
43% details#2705327: Failed to execute 'contains' on 'Node' 2016-04-13
43% details#2856047: Avoid random failures in JavascriptTestBase when testing functionality in a dialog 2017-02-26
43% details#2880703: Status report page without JavaScript is messed up 2017-05-23
43% details#2903614: [PP-1] Race condition results in same CSS+JS being loaded twice: race between BigPipe's server-side dynamic asset loading and Quick… 2017-08-21
43% details#2909128: Autocomplete intermittent on Chrome Android 2017-09-15
40% details#1936708: Current element values missing from vertical tabs when shown in 2-column layout 2013-03-07
40% details#2168711: Wrong use of Modernizr.touch, breaks contextual links 2014-01-07
40% details#2186647: Autocomplete: duplicates of existing terms are suggested (regression) 2014-02-01
40% details#2292083: Need to scroll to see Save options on content edit 2014-08-01
40% details#2643240: Comment behavior on entity settings form is broken. 2016-01-02
36% details#153313: Form data is lost when using the browser's back button 2007-10-19
36% details#994360: #states cannot disable/enable radios and checkboxes 2011-06-23
36% details#1272990: Make tabledrag warning message show when row weights are enabled, and add WAI-ARIA live region 2011-09-08
36% details#1333292: Screen-reader users receive information if file upload was successful 2011-11-06
36% details#1764912: Fix regressions and further improve tableheader.js 2012-08-31
36% details#2047089: Content translation settings UI should leverage Drupal.announce() to inform screen reader users of dynamic changes 2013-07-21
36% details#2588013: <span class="ajax-new-content" style="display:inline-block;"> causes unwanted whitespace 2015-10-12
36% details#2809347: All links using the "button" role should respond to spacebar, not only to enter key 2016-09-30
36% details#2852724: Machine-name field is not effectively hidden from keyboard and screen reader users. 2017-02-15
36% details#2885583: Close button in tour module lacks descriptive text 2017-06-13
36% details#2893663: Dropbutton should report open/closed state to assistive technology 2017-07-11
36% details#2917501: Title of Expansion Section Not Announced By JAWS/NVDA (IE/Edge Only) 2017-10-19
32% details#197641: Drag and drop is not RTL aware 2007-12-04
30% details#1848940: When enabling or disabling a View, don't move the cursor to the top of the page 2012-12-27
30% details#1899616: Sticky table headers float instead of being sticky at the top on narrow screens 2013-01-26
29% details#997826: #states doesn't work correctly with type text_format 2011-01-30
29% details#1148950: Applying #states to a vertical tab does not update the vertical tabs menu 2011-05-06
29% details#1149078: States API doesn't work with multiple select fields 2011-05-13
29% details#1426646: "-Select-" option is lost when form elements uses '#states' 2012-02-03
29% details#1877820: Ajax error when checking/importing interface translations 2013-01-02
29% details#1890266: dropbutton text fails to retain .dropbutton-widget width 2013-01-26
29% details#1962800: form #states not working with literal integers as values in IE 2013-04-05
29% details#1976614: Setting dateFormat for datepicker should not be translated 2013-08-28
29% details#2087009: Make sure weights are unique when using tabledrag 2013-09-11
29% details#2186643: Autocomplete always searches the last tag 2014-02-01
29% details#2207619: Edit icon for node in view's preview doesn't work 2014-02-28
29% details#2209063: Fix the flicker of the "active" icons when a high-latency user clicks on toolbar items 2014-03-03
29% details#2226405: FAPI #states: dependent element added via AJAX initializes incorrectly if dependee has been initialized earlier 2014-04-01
29% details#2277785: Tabledrag "tree-child" classes not being added 2014-06-01
29% details#2312805: Tour does not support turning off animation 2014-07-31
29% details#2395065: Certain URL fragments cause javascript error when collapsible fieldset is present on page 2015-02-24
29% details#2395845: Add core/drupal.form library to all Drupal forms 2015-01-17
29% details#2438713: blacklist spills over to all autocomplete options 2015-02-26
29% details#2463061: states.js attach add listeners but does not remove them 2015-05-14
29% details#2494235: Toolbar renders incorrectly due to 'contextual-region' class on <body> added by views-contextual.js 2015-05-29
29% details#2530052: Undefined settings in locale.datepicker.js 2015-07-09
29% details#2539664: Contextual links in views preview not working 2015-08-05
29% details#2561367: Back to content editing bar on node preview page not visible when javascript is disabled 2015-09-01
29% details#2608384: Unsaved allowed html tags are lost when adding a plugin 2015-11-04
29% details#2627788: Focus state bug on text field AJAX calls 2015-12-03
29% details#2637500: Fields floated via CSS can break Quick Edit — also happens for Article nodes in Bartik 2015-12-18
29% details#2639822: Contextual links destination uses internal paths, not path aliases 2015-12-23
29% details#2648460: AJAX view with exposed filters & default values does not respect user's empty choice 2016-01-11
29% details#2649546: [upstream] Alignment/justify buttons not appearing for CKEditor, <p class="text-align-left text-align-center text-align-right text-… 2016-01-13
29% details#2651798: form_test routes improperly defined, why doesn't this fail? 2016-01-17
29% details#2662932: Drupal.file.progressBar doesn't replace APC_UPLOAD_PROGRESS|UPLOAD_IDENTIFIER in time 2016-02-04
29% details#2666988: File Field Auto Upload doesn't work on slow network (before DOM READY/LOAD) 2016-02-11
29% details#2667396: Make the toolbar remember its open/closed state when in the horizontal position. 2016-02-12
29% details#2700521: dropbutton with a single option missing its rounded corners 2016-04-05
29% details#2707879: Contextual Links do not respect pathPrefix 2016-04-17
29% details#2762963: Can't scroll vertical toolbar tray to reveal last item, applies to both mobile and desktop breakpoints 2016-07-08
29% details#2764931: Contextual links don't work with 'use-ajax' links 2016-07-12
29% details#2775651: No active language in language switcher for URL with query string 2016-07-29
29% details#2784495: Normalize block place and outside-in experiences 2016-08-15
29% details#2806733: testMultipleLibrariesAreNotLoaded 2016-09-26
29% details#2815103: QuickEdit toolbar doesn't show when starting to edit another entity without closing the current instance 2016-10-08
29% details#2822217: DrupalImageCaption plugin does not recognize <img src>, with a manually specified src 2016-10-26
29% details#2826287: Duplicate Label field (on form) when adding field 2016-11-10
29% details#2831667: Autocomplete doesn't trigger `formUpdated` 2016-11-30
29% details#2834346: Contextual links double trigger 2016-12-09
29% details#2838945: Drupal.tableDrag: column span calculated wrongly for custom column 2016-12-23
29% details#2842525: Ajax attached to Views exposed filter form does not trigger callbacks 2017-01-10
29% details#2845161: States API doesn't work with default null value on select type and #multiple or #size option 2017-01-20
29% details#2848401: [upstream] Modernizr prevents strict CSP 2017-01-31
29% details#2855521: Drupalimage calling drupallink functions without checking if the plugin is loaded 2017-05-16
29% details#2858764: Empty "activeTray" in Toolbar's Model 2017-03-08
29% details#2858890: Drupal.views.ajaxView is not initializing pagers in nested views 2017-03-08
29% details#2862092: Views preview crashes 2017-03-20
29% details#2864974: Grouping button to dropbutton clears the disabled flag 2017-03-29
29% details#2871829: Simultaneous AJAX submissions result in form cache not getting updated for the second submission 2017-04-21
29% details#2874826: \Drupal\Tests\BrowserTestBase::submitForm is slow 2017-05-02
29% details#2877441: Improve readability of ESLint config 2017-05-10
29% details#2880338: Empty state (filled) doesn't work for date field with datepicker plugin 2017-05-22
29% details#2882346: Date polyfill incorrectly handles date format 2017-05-30
29% details#2885755: Not all toolbar items are tabs: Toolbar's "activeTab" handling interferes with active-link.js 2017-06-13
29% details#2893068: Terminated ajax requests throw error even if terminated because of a form submit 2017-07-07
29% details#2894004: Incorrect style for all draggable table row on devices has touchevents 2017-07-11
29% details#2895477: Native browser form validation does not fire when submit buttons use #ajax 2017-07-17
29% details#2897311: When there's non-zero latency, saving the Settings Tray causes the plain Toolbar to be visible first 2017-07-25
29% details#2897534: Vertical tab's doesn't take in account the open attribute. 2017-07-26
29% details#2901667: To optimize outside_in Drupal.behaviors.toggleEditMode 2017-08-12
29% details#2902299: Make OffCanvas 100% height on browser has visible scrollbar 2017-08-15
29% details#2902300: Wrong colspan for all tableDrag tables 2017-08-15
29% details#2902769: active-link.js throws JS error if query string parameter contains a single quote 2017-08-17
29% details#2903727: Resizing caused wrong width on dialog has long content and scrollbar 2017-08-22
29% details#2906737: With the new jquery 3 checkboxradio and selectmenu error 2017-09-05
29% details#2911932: Correct vertical tab does not focus on form validation 2017-09-26
29% details#2914826: Drupal.quickedit.metadata stores entity label in window.sessionStorage, does not update after entity label changed 2017-10-09
26% details#2805197: Provide screen-reader feedback when Views UI filterable options are updated 2016-09-23
21% details#1203766: With large number of permissions /admin/people/permissions becomes unusable 2011-06-29
21% details#1920876: Add a tiny bit of state magic in the image.module and hide the Title and Alt groups when the related form items are disabled 2013-02-19
21% details#1967800: Views UI filter checkboxes: Issue 2013-04-17
21% details#2442851: Views dialogs cannot be reopened 2015-02-27
21% details#2805499: Provide screen reader feedback when Views List is filtered by name or description 2016-09-23
21% details#2807241: Funky code in Views UI to make Add display list doesn't work in non-English languages 2016-09-27
21% details#2897430: Provide screen-reader feedback when filtering by test name. 2017-07-26
20% details#997370: Tabledrag is not hiding the correct columns 2010-12-14
20% details#2822014: prepareDialogButtons does not work for button elements. 2016-10-25
17% details#583400: jQuery UI libraries are loading too much CSS that needs to be reverted / Allow jQuery UI themes to be swappable 2009-09-21
17% details#1016056: Hide tabledrag handle and "Show row weights" when there is only one item in list 2012-01-24
17% details#2452343: toolbar add in javascript classes to remove confusion with css 2015-03-14
17% details#2731991: Setting required on radios marks all options required 2016-05-24
17% details#2771361: Ajax views leave obsolete Drupal.Ajax instances 2016-07-22
17% details#2773791: Clicking elements with children in Javascript tests throws a GastonJS exception 2016-07-28
17% details#2793343: Dialog drupalAutoButtons option should be respected on initial load 2016-09-01
14% details#1310642: Adding drupal_add_tabledrag() support for parents with depth 0 2011-11-05
14% details#1587536: JS aggregation should account for "defer" and "async" attributes 2012-05-29
14% details#2175513: Handle params array in Drupal.Views.parseQueryString JS function 2014-01-17
14% details#2215857: Behaviors get attached to removed forms 2014-04-22
14% details#2224541: Tour module popup stays fixed when toolbar moves 2014-03-25
14% details#2611872: JS exceptions are thrown each time a multiple-valued text field with a CKEditor instances is being rearanged 2015-11-09
14% details#2620748: Recoverable fatal error: Argument 1 passed to Drupal\comment\CommentManager::getCountNewComments() 2015-11-22
14% details#2707933: drupalSettings.path.currentPath on frontpage should return "" 2016-04-17
14% details#2892973: Missing required * 2017-07-07
13% details#2621630: Make Search Field for Module Install/Uninstall usable 2015-11-23
11% details#2082317: Forum history markers ("new" and "updated" markers, "x new posts" links) forces render caching to be per user 2013-09-05
9% details#2193333: Follow RFC 4329; use application/javascript instead of text/javascript 2014-02-11
7% details#495100: drupal_add_tabledrag() javascript hides drag handle together with 1st column, if 1st column is in $group 2009-06-18
7% details#590328: tableheader.js should give sticky-header table the same class as original table 2009-09-28
7% details#1091852: Display Bug when using #states (Forms API) with Ajax Request 2011-03-21
7% details#1440628: [Meta] javascript toolbar/tableheader with url fragment mess 2012-04-03
7% details#1824634: [meta] Dropbutton accessibility issues 2012-10-27
7% details#2314443: Changing view name does not update page title in views ui 2014-08-02
7% details#2769825: Potential bug? Draggable table test 2016-07-20
6% details#2613692: Ajax form elements selector and duplicate IDs 2015-11-11
4% details#1017020: timezone detect while installing should not always run. 2011-01-31

Sorting of the JavaScript issue queues based on user pain rating.

User pain = Type * Priority * Public / Max score

Highlighted rows are killer issues , issues that take a significant effort to fix due to their complexity.