qSA in IE 11/Edge often (but not always) don't find elements with an empty
name attribute selector (`[name=""]`). Detect that & fall back to Sizzle
traversal.
Interestingly, IE 10 & older don't seem to have the issue.
Fixes gh-4435
Closes gh-4510
Migrate all source AMD modules to ECMAScript modules. The final bundle
is compiled by a custom build process that uses Rollup under the hood.
Test files themselves are still loaded via RequireJS as that has to work in
IE 11.
Tests can now be run in "Load as modules" mode which replaces the previous
"Load with AMD" option. That option of running tests doesn't work in IE
and Edge as it requires support for dynamic imports.
Some of the changes required by the migration:
* check `typeof` of `noGlobal` instead of using the variable directly
as it's not available when modules are used
* change the nonce module to be an object as ECMASscript module exports
are immutable
* remove some unused exports
* import `./core/parseHTML.js` directly in `jquery.js` so that it's not
being cut out when the `ajax` module is excluded in a custom compilation
Closes gh-4541
IE/Edge sometimes crash when comparing documents between frames using the strict
equality operator (`===` & `!==`). Funnily enough, shallow comparisons
(`==` & `!=`) work without crashing.
The change to shallow comparisons in `src/selector.js` was done in gh-4471 but
relevant changes in `src/selector/uniqueSort.js` were missed. Those changes
have landed in Sizzle in jquery/sizzle#459.
Fixes gh-4441
Closes gh-4512
Ref gh-4471
Ref jquery/sizzle#459
An optimization added in jquery/sizzle#431 skips the temporary IDs for selectors
not using child or descendant combinators. For sibling combinators, though, this
pushes a selector with a leading combinator to qSA directly which crashes and
falls back to a slower Sizzle route.
This commit makes selectors with leading combinators not skip the selector
rewriting. Note that after jquery/jquery#4454 & jquery/sizzle#453, all modern
browsers other than Edge leverage the :scope pseudo-class, avoiding temporary
id attributes.
Closes gh-4509
Ref jquery/sizzle#431
The script transport used to evaluate fetched script sources which is
undesirable for unsuccessful HTTP responses. This is different to other data
types where such a convention was fine (e.g. in case of JSON).
Fixes gh-4250
Closes gh-4379
Calling `Array.prototype.concat.apply( [], inputArray )` to flatten `inputArray`
crashes for large arrays; using `Array.prototype.flat` avoids these issues in
browsers that support it. In case it's necessary to support these large arrays
even in older browsers, a polyfill for `Array.prototype.flat` can be loaded.
This is already being done by many applications.
Fixes gh-4320
Closes gh-4459
IE/Edge sometimes crash when comparing documents between frames using the strict
equality operator (`===` & `!==`). Funnily enough, shallow comparisons
(`==` & `!=`) work without crashing.
Fixes gh-4441
Closes gh-4471
`:even` & `:odd` are deprecated since jQuery 3.4.0 & will be removed in 4.0.0.
The new `even()` & `odd()` methods will make the migration easier.
Closes gh-4485
With new selector code doing less convoluted support tests, it was possible
to extract a lot of logic out of setDocument & also reduce size.
This commit also backports jquery/sizzle#439 that was reverted by mistake
during a switch from JSHint + JSCS to ESLint.
Closes gh-4462
Ref jquery/sizzle#442
Ref jquery/sizzle#439
Previously, jQuery.ajaxSettings.xhr, contents were wrapped in a try-catch
as we defined jQuery.support.ajax & jQuery.support.cors executed during the
jQuery load and we didn't want to crash if IE had native XHR disabled (which
is possible). While jQuery hasn't supported the ActiveX-based XHR since 2.0,
jQuery with XHR disabled could still be used for its other features in such
a crippled browser.
Since gh-4347, jQuery.support.ajax & jQuery.support.cors no longer exist, so
we don't need the try-catch anymore.
Fixes gh-1967
Closes gh-4467
Ref gh-4347
The `:scope` pseudo-class[1] has surprisingly good browser support: Chrome,
Firefox & Safari have supported if for a long time; only IE & Edge lack support.
This commit leverages this pseudo-class to get rid of the ID hack in most cases.
Adding a temporary ID may cause layout thrashing which was reported a few times
in [the past.
We can't completely eliminate the ID hack in modern browses as sibling selectors
require us to change context to the parent and then `:scope` stops applying to
what we'd like. But it'd still improve performance in the vast majority of
cases.
[1] https://developer.mozilla.org/en-US/docs/Web/CSS/:scope
Fixes gh-4453
Closes gh-4454
Ref gh-4332
Ref jquery/sizzle#405
Due to a faulty IE 8 workaround removal, the fast path qSA mode was skipped
when jQuery's find was called on an element node - i.e. in most cases. 😱
Ref gh-4395
Closes gh-4452
This commit removes Sizzle from jQuery, inlining its code & removing obsolete
workarounds where applicable.
The selector-native module has been removed. Further work on the selector
module may decrease the size enough that it will no longer be necessary. If
it turns out it's still useful, we'll reinstate it but the code will look
different anyway as we'll want to share as much code as possible with
the existing selector module.
The Sizzle AUTHORS.txt file has been merged with the jQuery one - people are
sorted by their first contributions to either of the two repositories.
The commit reduces the gzipped jQuery size by 1460 bytes compared to master.
Closes gh-4395
Apart from porting most Sizzle tests to jQuery (mostly to its selector module),
this commit fixes selector-native so that a jQuery custom compilation that
excludes Sizzle passes all tests as well.
Closes gh-4406
This commit requires all function parameters to be used, not just the last one.
In cases where that's not possible as we need to match an external API, there's
an escape hatch of prefixing an unused argument with `_`.
This change makes it easier to catch unused AMD dependencies and unused
parameters in internal functions the API of which we may change at will, among
other things.
Unused AMD dependencies have been removed as part of this commit.
Closes gh-4381
The original fix didn't account for the fact that in IE `<object>` elements
with no `data` attribute have an object `contentDocument`. The fix leverages
the fact that this special object has a null prototype.
Closes gh-4390
Ref gh-4384
Ref gh-4385
Because of the above conditional, the 'type' variable has a value of type
'string' or undefined. Therefore, boolean comparisons for 'type' variable
is always unnecessary because it return true. The patch removed the
unnecessary conditional statement.
Fixes gh-4374
Closes gh-4375
A leftover `rboxStyle` was left in the wrapper parameters but not in the
dependency array, causing `getStyles` to be undefined in AMD mode.
Since `rboxStyle` is no longer used, it's now removed.
Ref gh-4347
Closes gh-4380
Latest versions of all browsers now implement focusin & focusout natively
and they all converged on a common event order so it doesn't make much sense
for us to normalize it to a different order anymore.
Note that it means we no longer guarantee that focusin fires before focus
and focusout before blur.
Fixes gh-4300
Closes gh-4362
The camelCase implementation used by the data module no longer turns `-ms-foo`
into `msFoo` but to `MsFoo` now. This is because `data` is supposed to be
a generic utility not specifically bound to CSS use cases.
Fixes gh-3355
Closes gh-4365
Also, prevent further similar breakages by changing our ESLint configuration
to disallow relying on a global jQuery object in AMD modules.
Fixes gh-4358
Closes gh-4361
Summary of the changes/fixes:
1. Trigger checkbox and radio click events identically (cherry-picked from
b442abacbb that was reverted before).
2. Manually trigger a native event before checkbox/radio handlers.
3. Add test coverage for triggering namespaced native-backed events.
4. Propagate extra parameters passed when triggering the click event to
the handlers.
5. Intercept and preserve namespaced native-backed events.
6. Leverage native events for focus and blur.
7. Accept that focusin handlers may fire more than once for now.
Fixes gh-1741
Fixes gh-3423
Fixes gh-3751
Fixes gh-4139
Closes gh-4279
Ref gh-1367
Ref gh-3494
We had quite a few obsolete globals declared in various ESLint config files. We also no longer allow to rely on the `noGlobal` & `jQuery` globals in the built file which is not needed.
Closes gh-4301
PR #3869 added support for `<script type="module">` & some support for
the `nomodule` attribute but with no tests for `nomodule` and with the
attribute only respected on inline scripts. This commit adds support for
source-based scripts as well. It also adds tests for `nomodule`, including
making sure legacy browsers execute such scripts as they'd natively do - that's
the whole point of `nomodule` scripts, after all.
Fixes gh-4281
Closes gh-4282
Ref gh-3871
Ref gh-3869
Read target[name] only when it's needed.
In addition to doing the property read-only when needed, this
avoids a slow path in V8 (see the issue for more details).
Fixes gh-4245
Closes gh-4246
- getResponseHeader(key) combines all header values for the provided key into a
single result where values are concatenated by ', '. This does not happen for
IE11 since multiple values for the same header are returned on separate lines.
This makes the function only return the last value of the header for IE11.
- Updated ajax headers test to better cover Object.prototype collisions
Close gh-4173
Fixes gh-3403
Current width/height cssHook reads the computed position style even if not
necessary as the browser passes the scrollboxSize support test. That has been
changed.
This commit also makes the scrollboxSize support test in line with all others
(i.e. only return true or false) and changes the variable name in the hook
to make the code clearer.
Fixes gh-4185
Closes gh-4187
Fixes gh-3986
Closes gh-4005
Avoids filling jQuery.cssProps by introducing a second internal
prop cache. This allows jQuery Migrate to detect external usage.
rAF logic was introduced almost three years ago relative to this commit,
as a primary method for scheduling animation (see gh-1578 pull).
With it there was two substantial changes - one was explicitly mentioned
and the other was not.
First, if browser window was hidden aka `document.hidden === true`
it would immediately execute all scheduled animation without waiting
for time pass i.e. tick time become `0` instead of 13 ms of a default value.
Which created possibility for circular executions in case if `complete`
method executed the same animation (see gh-3434 issue).
And the second one - since then there was two ways of scheduling animation:
with `setInterval` and `requestAnimationFrame`, but there was a
difference in their execution.
In case of `setInterval` it waited default `jQuery.fx.interval` value before
actually starting the new tick, not counting the first step which wasn't
set to be executed through tick method (aka `jQuery.fx.tick`).
Whereas `requestAnimationFrame` first scheduled the call and executed
the `step` method right after that, counting the first call of
`jQuery.fx.timer`, `tick` was happening twice in one frame.
But since tests explicitly disabled rAF method i.e.
`requestAnimationFrame = null` and checking only `setInterval` logic,
since it's impossible to do it otherwise - we missed that change.
Faulty logic also was presented with `cancelAnimationFrame`, which couldn't
clear any timers since `raf` scheduler didn't define new `timerId` value.
Because that change was so subtle, apparently no user noticed it proving
that both `cancelAnimationFrame` and `clearInterval` code paths are redundant.
Since `cancelAnimationFrame` didn't work properly and rAF is and was a primary
used code path, plus the same approach is used in other popular animation libs.
Therefore those code paths were removed.
These changes also replace two different functions which schedule the animation
with one, which checks what type of logic should be used and executes it
appropriatley, but for secondary path it now uses `setTimeout` making it more
consistent with rAF path.
Since ticks are happening globally we also don't require to listen
`visibilitychange` event.
It also changes the way how first call is scheduled so execution of
animation will not happen twice in one frame.
No new tests were not introduced, since now `setTimeout` logic should be
equivalent to the rAF one, but one test was changed since now we actually
execute animation at the first tick.
Fixes gh-3434
Closes gh-3559
Notify full progress before resolving empty animations
Register animation callbacks before their ticker
Remove the right timer when immediately-done animations spawn more
Ref 9d822bc1c1
Fixes gh-3502
Fixes gh-3503
Closes gh-3496
1. Use the short name of the preset in the config.
2. Run ESLint first on non-minified files.
3. Explicitly specify environments in every config file (those settings cascade
which means we've been assuming a Node.js environment where we shouldn't have).
- Renames and changes rnotwhite to focus on HTML whitespace chars
- Change internal use of jQuery.trim to more accurate strip and collapse
- Adds tests to ensure HTML space characters are retained where valid
- Doesn't add tests where the difference is inconsequential and
existing tests are adequate.
Fixes gh-3003
Fixes gh-3072
Close gh-3316
- For compability reasons, we had already added the global
in AMD mode, but without noConflict. This adds back noConflict
to AMD (which fixes noConflict mode in the tests).
Fixes gh-2930
The new regex from after the switch from JSHint to ESLint wasn't catching
the ESLint pragma correctly.
Also, the spacing of the pragma comment was updated to match other comments.
Progress parameters are now correctly propagated from a deferred to which
another deferred resolved unwrapping it.
Thanks to @gibson042 for the report and a clear description of the problem
and the needed fix.
Fixes gh-3062
Closes gh-3150
Attribute hooks are determined for the lowercase versions of attribute names
but this has not been reflected in the bool attribute hooks. The code that
temporarily removed a handler to avoid an infinite loop was removing an
incorrect handler causing stack overflow.
Fixes gh-3133
Refs gh-2914
Refs gh-2916
Closes gh-3134
Ref gh-2736
The exception stack has the name of the immediately outer function where the
exception occurred, which can be very handy for tracing errors. Since we already
have the exception object we might as well use it.
Fixes gh-3103
Fixes gh-1746
Closes gh-2860
- Removes the copy loop in jQuery.event.fix
- Avoids accessing properties such as client/offset/page/screen X/Y
which may cause style recalc or layouts
- Simplifies adding property hooks to event object
