The `test/middleware-mockserver.js` file used to have the same ESLint
settings applied as other test files that are directly run in tested
browsers. Now it shares settings of other Node.js files.
The file is now also written using modern JS, leveraging ES2018.
Closes gh-5196
jQuery 3.6.2 started using `CSS.supports( "selector(SELECTOR)" )` before using
`querySelectorAll` on the selector. This was to solve gh-5098 - some selectors,
like `:has()`, now had their parameters parsed in a forgiving way, meaning
that `:has(:fakepseudo)` no longer throws but just returns 0 results, breaking
that jQuery mechanism.
A recent spec change made `CSS.supports( "selector(SELECTOR)" )` always use
non-forgiving parsing, allowing us to use this API for what we've used
`try-catch` before.
To solve the issue on the spec side for older jQuery versions, `:has()`
parameters are no longer using forgiving parsing in the latest spec update
but our new mechanism is more future-proof anyway.
However, the jQuery implementation has a bug - in
`CSS.supports( "selector(SELECTOR)" )`, `SELECTOR` needs to be
a `<complex-selector>` and not a `<complex-selector-list>`. Which means that
selector lists now skip `qSA` and go to the jQuery custom traversal:
```js
CSS.supports("selector(div:valid, span)"); // false
CSS.supports("selector(div:valid)"); // true
CSS.supports("selector(span)"); // true
```
To solve this, this commit wraps the selector list passed to
`CSS.supports( "selector(:is(SELECTOR))" )` with `:is`, making it a single
selector again.
See:
* https://w3c.github.io/csswg-drafts/css-conditional-4/#at-supports-ext
* https://w3c.github.io/csswg-drafts/selectors-4/#typedef-complex-selector
* https://w3c.github.io/csswg-drafts/selectors-4/#typedef-complex-selector-list
Fixes gh-5177
Closes gh-5178
Ref w3c/csswg-drafts#7280
The `jQuery.contains` method is quite simple in jQuery 4+. On the other side,
it's a dependency of the core `isAttached` util which is not ideal; moving
it from the `selector` the `core` module resolves the issue.
Closes gh-5167
Some APIs, like `.prevAll()`, return elements in the reversed order, causing
confusing behavior when used with wrapping methods (see gh-5149 for more info)
To provide an easy workaround, this commit implements a chainable `uniqueSort`
method on jQuery objects, an equivalent of `jQuery.uniqueSort`.
Fixes gh-5166
Closes gh-5168
Firefox 106 adjusted to the spec mandating that `CSS.supports("selector(...)")`
uses non-forgiving parsing which makes it pass the relevant support test.
Closes gh-5141
Re-introduce the `selector-native` similar to the one on the `3.x-stable`
branch. One difference is since the `main` branch inlined Sizzle, some
selector utils can be shared between the main `selector` module and
`selector-native`.
The main `selector` module can be disabled in favor of `selector-native`
via:
grunt custom:-selector
Other changes:
* Tests: Fix Safari detection - Chrome Headless has a different user
agent than Safari and a browser check in selector tests didn't take
that into account.
* Tests: Run selector-native tests in `npm test`
* Selector: Fix querying on document fragments
Ref gh-4395
Closes gh-5085
The `<template/>` element `contents` property is a document fragment that may
have a `null` `documentElement`. In Safari 16 this happens in more cases due
to recent spec changes - in particular, even if that document fragment is
explicitly adopted into an outer document. We're testing both of those cases
now.
The crash used to happen in `jQuery.contains`. As it turns out, we don't need
to query the supposed container `documentElement` if it has the
`Node.DOCUMENT_NODE` (9) `nodeType`; we can call `.contains()` directly on
the `document`. That avoids the crash.
Fixes gh-5147
Closes gh-5158
According to the docs, one can use `null` as a success function in `jQuery.get`
of `jQuery.post` so the following:
```js
await jQuery.get( "https://httpbin.org/json", null, "text" )
```
should get the text result. However, this shortcut hasn't been working so far.
Fixes gh-4989
Closes gh-5139
This backports custom pseudos tests from Sizzle; they were missed in original
test backports. Also, the support for legacy custom pseudos has been dropped.
The `jQuery.expr` test cleanup has been wrapped in `try-finally` for cleaner
test isolation in case anything goes wrong.
Closes gh-5137
We've already had `buildFragment` extracted to a separate file long ago.
`domManip` is quite a complex & crucial API and so far it has existed within
the `manipulation.js` module. Extracting it makes the module shorter and easier
to understand.
A few comments / messages in tests have also been updated to not suggest there's
a public `jQuery.domManip` API - it's been private since 3.0.0.
Closes gh-5138
The previous details were showing their age, e.g. mentions about browsers
not supporting ES2015. The story with ES modules is more complex as it's also
about loaders but to keep the README simple, let's just make it more up to date
with typical usage.
Closes gh-5108
Firefox 96-100 used to report the column number smaller by 2 than it should
in the `parsererror` element generated for invalid XML documents. Since that
version range is unsupported now and it includes no ESR versions, the workaround
can now be dropped.
Closes gh-5109
Ref gh-5018
The spec requires that CSS variable values are trimmed. In browsers that do
this - mainly, Safari, but also Firefox if the value only has leading
whitespace - we currently return undefined; in other browsers, we return
an empty string as the logic to fall back to undefined happens before
trimming.
This commit adds another explicit callback to `undefined` to have it consistent
across browsers.
Also, more explicit comments about behaviors we need to work around in various
browsers have been added.
Closes gh-5120
Ref gh-5106
jQuery has followed the following logic for selector handling for ages:
1. Modify the selector to adhere to scoping rules jQuery mandates.
2. Try `qSA` on the modified selector. If it succeeds, use the results.
3. If `qSA` threw an error, run the jQuery custom traversal instead.
It worked fine so far but now CSS has a concept of forgiving selector lists that
some selectors like `:is()` & `:has()` use. That means providing unrecognized
selectors as parameters to `:is()` & `:has()` no longer throws an error, it will
just return no results. That made browsers with native `:has()` support break
selectors using jQuery extensions inside, e.g. `:has(:contains("Item"))`.
Detecting support for selectors can also be done via:
```js
CSS.supports( "selector(SELECTOR_TO_BE_TESTED)" )
```
which returns a boolean. There was a recent spec change requiring this API to
always use non-forgiving parsing:
https://github.com/w3c/csswg-drafts/issues/7280#issuecomment-1143852187
However, no browsers have implemented this change so far.
To solve this, two changes are being made:
1. In browsers supports the new spec change to `CSS.supports( "selector()" )`,
use it before trying `qSA`.
2. Otherwise, add `:has` to the buggy selectors list.
Fixes gh-5098
Closes gh-5107
Ref w3c/csswg-drafts#7676
The third parameter of `jQuery.fn.init` - `root` - was just needed to support
`jQuery.sub`. Since this API has been removed in jQuery 1.9.0 and Migrate 3.x
is not filling it in, this parameter is no longer needed.
This parameter has never been documented but it's safer to remove it in a major
update.
Closes gh-5096
Without this fix, the layout is fine during the test run but all the CSS is gone
when tests finish and the results are shown.
This affects commands like `grunt karma:chrome-debug`.
Closes gh-5090
Introduces a new test API, `includesModule`. The method returns whether
a particular module like "ajax" or "deprecated" is included in the current
jQuery build; it handles the slim build as well. The util was created so that
we don't treat presence of particular APIs to decide whether to run a test as
then if we accidentally remove an API, the tests would still not fail.
Fixes gh-5069
Closes gh-5046
This adds testing on Node.js 17 in addition to the currently tested 10, 12, 14
and 16 versions.
Also, update Grunt & `karma-*` packages.
Testing in Karma on jsdom is broken in Node 17 at the moment; until we find
a fix, this change disables such testing on Node 17 or newer.
Node smoke tests & promises aplus tests are disabled on Node.js 10 as they
depend on jsdom and the latest jsdom version doesn't run properly on Node 10.
Closes gh-5023
`jQuery.fx.interval` has been deprecated since jQuery 3.0.0 but it has been
still used in jQuery code until this change. This commit removes the definition
and explicitly uses the `13` number in its place.
Closes gh-5017
This change makes jQuery skip falsy values in `addClass( array )`
& `removeClass( array )` instead of stopping iteration when the first falsy
value is detected. This makes code like:
```js
elem.addClass( [ "a", "", "b" ] );
```
add both the `a` & `b` classes.
The code was also optimized for size a bit so it doesn't increase the
minified gzipped size.
Fixes gh-4998
Closes gh-5003
PR gh-4993 changed a few too many issue references to `trac-NUMBER` ones. This
change fixes them. It also fixes a typo in one Trac issue number in selector
tests.
Ref gh-4993
Closes gh-4995
Neither of the removed links is crucial; one of them refers to a site that has
since started being malicious; while the Web Archive links remain safe, some
scanners warn about such links. Removing them is the safest thing to do.
Fixes gh-4981
Closes gh-4991
The GitHub UI treats `#NUMBER` as referring to its own issues which is confusing
when in jQuery source it's usually referring to the old deprecated Trac instance
at https://bugs.jquery.com. This change replaces all such Trac references with
`trac-NUMBER`.
A few of the references came with the Sizzle integration and referred to the
Sizzle GitHub bug tracker. Those have been replaced with full links instead.
A new entry describing issue reference conventions has been added to README.
Closes gh-4993
CSS does not acknowledge carriage return or form feed characters
as whitespace but it does replace them with whitespace, making it
acceptable to use `rtrim`.
Closes gh-4956
TestSwarm is now proxied via Cloudflare which cuts out headers relevant for
ETag tests, failing them. We're still running those tests in Karma on Chrome
& Firefox (including Firefox ESR).
Closes gh-4974
In HTTP/2, status message is not supported and whatever is reported as
statusText differs between browsers. In Chrome & Safari it's "success", in
Firefox & IE it's "OK". So far "success" wasn't allowed. This made the tests
pass locally if you're running an HTTP/1.1 server but on TestSwarm which is
now proxied via an HTTP/2-equipped Cloudflare, the relevant test started failing
in Chrome & Safari.
Allow "success" to resolve the issue.
Closes gh-4973
Stringifying attributes in the setter was needed for IE <=9 but it breaks
trusted types enforcement when setting a script `src` attribute.
Note that this doesn't mean script execution works. Since jQuery disables all
scripts by changing their type and then executes them by creating fresh script
tags with proper `src` & possibly other attributes, this unwraps any trusted
`src` wrappers, making the script not execute under strict CSP settings.
We might try to fix it in the future in a separate change.
Fixes gh-4948
Closes gh-4949
