Wall of browser bugs
This page is outdated and is no longer applicable to the latest versions of Bootstrap. It’s here purely for historical purposes now and will be removed in our next major release.
Bootstrap currently works around several outstanding browser bugs in major browsers to deliver the best cross-browser experience possible. Some bugs, like those listed below, cannot be solved by us.
We publicly list browser bugs that are impacting us here, in the hopes of expediting the process of fixing them. For information on Bootstrap’s browser compatibility, see our browser compatibility docs.
See also:
Chromium issue 536263: [meta] Issues affecting Bootstrap Mozilla bug 1230801: Fix the issues that affect Bootstrap WebKit bug 159753: [meta] Issues affecting Bootstrap jQuery’s browser bug workarounds Browser(s) Summary of bug Upstream bug(s) Bootstrap issue(s) EdgeVisual artifacts in scrollable modal dialogs
Edge issue #9011176 #20755 EdgeNative browser tooltip for title shows on first keyboard focus (in addition to custom tooltip component)
Edge issue #6793560 #18692 EdgeHovered element still remains in :hover state after scrolling away.
Edge issue #5381673 #14211 EdgeCSS border-radius sometimes causes lines of bleed-through of the background-color of the parent element.
Edge issue #3342037 #16671 Edgebackground of <tr> is only applied to first child cell instead of all cells in the row
Edge issue #5865620 #18504 EdgeBackground color from lower layer bleeds through transparent border in some cases
Edge issue #6274505 #18228 EdgeHovering over descendant SVG element fires mouseleave event at ancestor
Edge issue #7787318 #19670 EdgeActive position: fixed; <button> flickers when scrolling
Edge issue #8770398 #20507 Firefox.table-bordered with an empty <tbody> is missing borders.
Mozilla bug #1023761 #13453 FirefoxIf the disabled state of a form control is changed via JavaScript, the normal state doesn’t return after refreshing the page.
Mozilla bug #654072 #793 Firefoxfocus events should not be fired at the document object
Mozilla bug #1228802 #18365 FirefoxWide floated table doesn’t wrap onto new line
Mozilla bug #1277782 #19839 FirefoxMouse sometimes not within element for purposes of mouseenter/mouseleave when it’s within SVG elements
Mozilla bug #577785 #19670 FirefoxLayout with floated columns breaks when printing
Mozilla bug #1315994 #21092 Firefox (Windows)Right border of <select> menu is sometimes missing when screen is set to uncommon resolution
Mozilla bug #545685 #15990 Firefox (macOS & Linux)Badge widget causes bottom border of Tabs widget to unexpectedly not overlap
Mozilla bug #1259972 #19626 Chrome (macOS)Clicking above <input type="number"> increment button flashes the decrement button.
Chromium issue #419108 Offshoot of #8350 & Chromium issue #337668 ChromeCSS infinite linear animation with alpha transparency leaks memory.
Chromium issue #429375 #14409 Chrometable-cell borders not overlapping despite margin-right: -1px
Chromium issue #749848 #17438, #14237 ChromeDon’t make :hover sticky on touch-friendly webpages
Chromium issue #370155 #12832 Chromeposition: absolute element that’s wider than its column is incorrectly clipped to column boundary
Chromium issue #269061 #20161 ChromeSignificant performance hit for dynamic SVGs with text depending on the number of fonts in font-family.
Chromium issue #781344 #24673 Safarirem units in media queries should be calculated using font-size: initial, not the root element’s font-size
WebKit bug #156684 #17403 SafariLink to container with id and tabindex results in container being ignored by VoiceOver (affects skip links)
WebKit bug #163658 #20732 SafariCSS min-width and max-width media features should not round fractional pixel
WebKit bug #178261 #25166 Safari (macOS)px, em, and rem should all behave the same in media queries when page zoom is applied
WebKit bug #156687 #17403 Safari (macOS)Weird button behavior with some <input type="number"> elements.
WebKit bug #137269, Apple Safari Radar #18834768 #8350, Normalize #283, Chromium issue #337668 Safari (macOS)Small font size when printing webpage with fixed-width .container.
WebKit bug #138192, Apple Safari Radar #19435018 #14868 Safari (iOS)transform: translate3d(0,0,0); rendering bug.
WebKit bug #138162, Apple Safari Radar #18804973 #14603 Safari (iOS)Text input’s cursor doesn’t move while scrolling the page.
WebKit bug #138201, Apple Safari Radar #18819624 #14708 Safari (iOS)Can’t move cursor to start of text after entering long string of text into <input type="text">
WebKit bug #148061, Apple Safari Radar #22299624 #16988 Safari (iOS)display: block causes text of temporal <input>s to become vertically misaligned
WebKit bug #139848, Apple Safari Radar #19434878 #11266, #13098 Safari (iOS)Tapping on <body> doesn’t fire click events
WebKit bug #151933 #16028 Safari (iOS)position:fixed is incorrectly positioned when tab bar is visible on iPhone 6S+ Safari
WebKit bug #153056 #18859 Safari (iOS)Tapping into an <input> within a position:fixed element scrolls to the top of the page
WebKit bug #153224, Apple Safari Radar #24235301 #17497 Safari (iOS)<body> with overflow:hidden CSS is scrollable on iOS
WebKit bug #153852 #14839 Safari (iOS)Scroll gesture in text field in position:fixed element sometimes scrolls <body> instead of scrollable ancestor
WebKit bug #153856 #14839 Safari (iOS)Modal with -webkit-overflow-scrolling: touch doesn’t become scrollable after added text makes it taller
WebKit bug #158342 #17695 Safari (iOS)Don’t make :hover sticky on touch-friendly webpages
WebKit bug #158517 #12832 Safari (iOS)Element which is position:fixed disappears after opening a <select> menu
WebKit bug #162362 #20759 Safari (iPad Pro)Rendering of descendants of position: fixed element gets clipped on iPad Pro in Landscape orientation
WebKit bug #152637, Apple Safari Radar #24030853 #18738Most wanted features
There are several features specified in Web standards which would allow us to make Bootstrap more robust, elegant, or performant, but aren’t yet implemented in certain browsers, thus preventing us from taking advantage of them.
We publicly list these “most wanted” feature requests here, in the hopes of expediting the process of getting them implemented.
Browser(s) Summary of feature Upstream issue(s) Bootstrap issue(s) EdgeFocusable elements should fire focus event / receive :focus styling when they receive Narrator/accessibility focus
Microsoft A11y UserVoice idea #16717318 #20732 EdgeImplement the :dir() pseudo-class from Selectors Level 4
Edge UserVoice idea #12299532 #19984 EdgeImplement the HTML5 <dialog> element
Edge UserVoice idea #6508895 #20175 EdgeFire a transitioncancel event when a CSS transition is canceled
Edge UserVoice idea #15939898 #20618 EdgeImplement the of <selector-list> clause of the :nth-child() pseudo-class
Edge UserVoice idea #15944476 #20143 FirefoxImplement the of <selector-list> clause of the :nth-child() pseudo-class
Mozilla bug #854148 #20143 FirefoxImplement the HTML5 <dialog> element
Mozilla bug #840640 #20175 FirefoxWhen virtual focus is on a button or link, fire actual focus on the element, too
Mozilla bug #1000082 #20732 ChromeFire a transitioncancel event when a CSS transition is canceled
Chromium issue #642487 Chromium issue #437860 ChromeImplement the of <selector-list> clause of the :nth-child() pseudo-class
Chromium issue #304163 #20143 ChromeImplement the :dir() pseudo-class from Selectors Level 4
Chromium issue #576815 #19984 SafariFire a transitioncancel event when a CSS transition is canceled
WebKit bug #161535 #20618 SafariImplement the :dir() pseudo-class from Selectors Level 4
WebKit bug #64861 #19984 SafariImplement the HTML5 <dialog> element
WebKit bug #84635 #20175相关知识
Wall of browser bugs
《DK百科分级第二阶》（点读版）中文参考翻译---《Bugs, Bugs, Bugs!》
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