Wall of browser bugs

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.

Also see jQuery’s browser bug workarounds.

Browser(s)	Summary of bug	Upstream bug(s)	Bootstrap issue(s)
Internet Explorer 11 & Microsoft Edge	Hovered element still remains in `:hover` state after scrolling away.	IE bug #926665	#14211
Internet Explorer 11 & Microsoft Edge	When hovering over a `<select>` menu item, the cursor for the element underneath the menu is displayed.	IE bug #963961	#14528
Internet Explorer 11 & Microsoft Edge	CSS `border-radius` sometimes causes lines of bleed-through of the `background-color` of the parent element.	IE bug #1463734	#16671
Internet Explorer 11 & Microsoft Edge	`background` of `<tr>` is only applied to first child cell instead of all cells in the row	IE bug #2110930	#18504
Firefox	`.table-bordered` with an empty `<tbody>` is missing borders.	Mozilla bug #1023761	#13453
Firefox	`max-width: 100%;` doesn’t work inside tables.	Mozilla bug #975632	#10690
Firefox	Button elements with `width: 100%` become cropped in long tables.	Mozilla bug #1060131	#14320
Firefox	If 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
Firefox	`focus` events should not be fired at the `document` object	Mozilla bug #1228802	#18365
Firefox (Windows)	Right border of `<select>` menu is sometimes missing when screen is set to uncommon resolution	Mozilla bug #1139853	#15990
Chrome (OS X)	Clicking above `<input type="number">` increment button flashes the decrement button.	Chromium issue #419108	Offshoot of #8350 & Chromium issue #337668
Chrome (OS X)	Caps Lock indicator not shown in `<input type="password">` with `display: block`	Chromium issue #460200	#15832
Chrome	Focus ring of image map within a modal is displayed in the wrong location.	Chromium issue #475128	#16180
Chrome	Incorrect viewport size used for media queries when printing.	Chromium issue #273306	#12078
Chrome	CSS infinite linear animation with alpha transparency leaks memory.	Chromium issue #429375	#14409
Chrome	`:focus` `outline` style causes cursor to not be displayed when toggling a `readonly` `<input>` to read-write.	Chromium issue #465274	#16022
Chrome	`width: 1%` on nested table cell causes its table to hog horizontal space.	Chromium issue #427994	#16372
Chrome	`table-cell` borders not overlapping despite `margin-right: -1px`	Chromium issue #534750	#17438, #14237
Chrome (Windows & Linux)	Animation glitch when returning to inactive tab after animations occurred while tab was hidden.	Chromium issue #449180	#15298
Safari	`width: 1%` on nested table cell causes its table to hog horizontal space.	WebKit bug #144696, Apple Safari Radar #20839572	#16372
Safari (OS X)	Scrollbar clipped in `select[multiple]` with padding.	WebKit bug #128489, Apple Safari Radar #19208483	#12536
Safari (OS X)	Weird button behavior with some `<input type="number">` elements.	WebKit bug #137269, Apple Safari Radar #18834768	#8350, Normalize #283, Chromium issue #337668
Safari (OS X)	Small font size when printing webpage with fixed-width `.container`.	WebKit bug #138192, Apple Safari Radar #19435018	#14868
Safari (OS X)	Focus ring of image map within a modal is displayed in the wrong location.	WebKit bug #143527, Apple Safari Radar #21908735	#16180
Safari (iPad)	`<select>` menu on iPad causes shifting of hit-testing areas	WebKit bug #150079, Apple Safari Radar #23082521	#14975
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 (iPad Pro)	Rendering of descendants of `position: fixed` element gets clipped on iPad Pro in Landscape orientation	WebKit bug #152637, Apple Safari Radar #24030853	#18738