Commit Graph

2342 Commits

Author SHA1 Message Date
Michał Gołębiowski-Owczarek
65b85031fb
CSS: Make the reliableTrDimensions support test work with Bootstrap CSS
Bootstrap 5 includes the following CSS on the page:

```css
*,
*::before,
*::after {
  box-sizing: border-box;
}
```

That threw our `reliableTrDimensions` support test off. This change fixes the
support test and adds a unit test ensuring support test values on a page
including Bootstrap 5 CSS are the same as on a page without it.

Fixes gh-5270
Closes gh-5278
Ref gh-5279
2023-07-10 18:33:05 +02:00
Dimitri Papadopoulos Orfanos
620870a1af
Docs: Fix typos found by codespell
Closes gh-5165
2023-06-28 00:29:29 +02:00
Michał Gołębiowski-Owczarek
62b9a25834
Tests: Disable the ":lang respects escaped backslashes" test
Firefox 114+ no longer match on backslashes in `:lang()`, even when escaped.
It is an intentional change as `:lang()` parameters are supposed to be valid
BCP 47 strings. Therefore, we won't attempt to patch it.
We'll keep this test here until other browsers match the behavior.

Fixes gh-5271
Closes gh-5277
Ref https://bugzilla.mozilla.org/show_bug.cgi?id=1839747#c1
Ref https://github.com/w3c/csswg-drafts/issues/8720#issuecomment-1509242961
2023-06-27 18:05:46 +02:00
Timo Tijhof
a75d6b52fa
Core: Fix regression in jQuery.text() on HTMLDocument objects
Fixes gh-5264
Closes gh-5265

(cherry picked from commit 44c56f87a3)
2023-06-12 23:12:33 +02:00
Michał Gołębiowski-Owczarek
338de35990
Selector: Re-expose jQuery.find.{tokenize,select,compile,setDocument}
`Sizzle.tokenize` is an internal Sizzle API, but exposed. As a result,
it has historically been available in jQuery via `jQuery.find.tokenize`.
That got dropped during Sizzle removal; this change restores the API.

Some other APIs so far only exposed on the `3.x` line are also added
back:
* `jQuery.find.select`
* `jQuery.find.compile`
* `jQuery.find.setDocument`

In addition to that, Sizzle tests have been backported for the following
APIs:
* `jQuery.find.matchesSelector`
* `jQuery.find.matches`
* `jQuery.find.compile`
* `jQuery.find.select`

A new test was also added for `jQuery.find.tokenize` - even Sizzle was
missing one.

Fixes gh-5259
Closes gh-5263
Ref gh-5260
Ref jquery/sizzle#242
Ref gh-5113
Ref gh-4395
Ref gh-4406
2023-06-12 22:58:55 +02:00
Michał Gołębiowski-Owczarek
89ef81f86f
Tests: Indicate Chrome 112 & Safari 16.4 pass the cssHas support test
Chrome 112 & Safari 16.4 introduce two changes:
* `:has()` is non-forgiving
* `CSS.supports( "selector(...)" )` parses everything in a non-forgiving way

We no longer care about the latter but the former means the `cssHas` support
test now passes.

Closes gh-5225
2023-04-05 00:34:39 +02:00
Michał Gołębiowski-Owczarek
bce13b72c1
CSS: Make offsetHeight( true ), etc. include negative margins
This regressed in gh-3656 as the added logic to include scroll gutters
in `.innerWidth()` / `.innerHeight()` didn't take negative margins into
account. This broke handling of negative margins in
`.offsetHeight( true )` and `.offsetWidth( true )`. To fix it, calculate
margin delta separately and only add it after the scroll gutter
adjustment logic.

Fixes gh-3982
Closes gh-5234
Ref gh-3656
2023-04-04 16:00:55 +02:00
Michał Gołębiowski-Owczarek
bcaeb000b7
Event: Avoid collisions between jQuery.event.special & Object.prototype
This is a follow-up to similar changes to data & event storages from
gh-4603.

Closes gh-5235
Ref gh-4603
2023-04-03 18:40:24 +02:00
Michał Gołębiowski-Owczarek
6ad3651dbf
Event: Make trigger(focus/blur/click) work with native handlers
In `leverageNative`, instead of calling `event.stopImmediatePropagation()`
which would abort both native & jQuery handlers, set the wrapper's
`isImmediatePropagationStopped` property to a function returning `true`.
Since for each element + type pair jQuery attaches only one native handler,
there is also only one wrapper jQuery event so this achieves the goal:
on the target element jQuery handlers don't fire but native ones do.

Unfortunately, this workaround doesn't work for handlers on ancestors
- since the native event is re-wrapped by a jQuery one on each level of
the propagation, the only way to stop it for jQuery was to stop it for
everyone via native `stopPropagation()`. This is not a problem for
`focus`/`blur` which don't bubble, but it does also stop `click` on
checkboxes and radios. We accept this limitation.

Fixes gh-5015
Closes gh-5228
2023-03-27 21:47:01 +02:00
Michał Gołębiowski-Owczarek
ce60d31893
Event: Simulate focus/blur in IE via focusin/focusout
In IE (all versions), `focus` & `blur` handlers are fired asynchronously
but `focusin` & `focusout` are run synchronously. In other browsers, all
those handlers are fired synchronously. Asynchronous behavior of these
handlers in IE caused issues for IE (gh-4856, gh-4859).

We now simulate `focus` via `focusin` & `blur` via `focusout` in IE to avoid
these issues. This also let us simplify some tests.

This commit also simplifies `leverageNative` - with IE now using `focusin`
to simulate `focus` and `focusout` to simulate `blur`, we don't have to deal
with async events in `leverageNative`. This also fixes broken `focus` triggers
after first triggering it on a hidden element - previously, `leverageNative`
assumed that the native `focus` handler not firing after calling the native 
`focus` method meant it would be handled later, asynchronously, which
was not the case (gh-4950).

Fixes gh-4856
Fixes gh-4859
Fixes gh-4950
Closes gh-5223

Co-authored-by: Richard Gibson <richard.gibson@gmail.com>
2023-03-27 21:22:38 +02:00
Michał Gołębiowski-Owczarek
992a1911d0
Ajax: Don't treat array data as binary
PR gh-5197 started treating all non-string non-plain-object
`data` values as binary. However, `jQuery.ajax` also supports
arrays as values of `data`. This change makes regular arrays
no longer be considered binary data.

Surprisingly, we had no tests for array `data` values; otherwise,
we'd detect the issue earlier. This change also adds
a few such missing tests.

Closes gh-5203
Ref gh-5197
2023-03-21 00:36:00 +01:00
Michał Gołębiowski-Owczarek
ce264e0789
Ajax: Allow processData: true even for binary data
The way gh-5197 implemented binary data handling, `processData`
was being explicitly set to `false`. This is expected but it made
it impossible to override it to `true`. The new logic will only
set `processData` to `false` if it wasn't explicitly passed
in original options.

Closes gh-5205
Ref gh-5197
2023-03-20 17:08:51 +01:00
Michał Gołębiowski-Owczarek
cff2899885
Tests: Test AJAX deprecated event aliases properly
PR gh-5046 erroneously changed AJAX deprecated event alias
usage in deprecated tests to `.on()` calls. This change
reverses this mistake.

Closes gh-5195
Ref gh-5046
2023-03-15 11:44:08 +01:00
Michał Gołębiowski-Owczarek
258ca1ec6a
Deferred: Rename getStackHook to getErrorHook
Rename `jQuery.Deferred.getStackHook` to `jQuery.Deferred.getErrorHook`
to indicate passing an error instance is usually a better choice - it
works with source maps while a raw stack generally does not.

In jQuery `3.7.0`, we'll keep both names, marking the old one as
deprecated. In jQuery `4.0.0` we'll just keep the new one. This
change implements the `4.0.0` version; PR gh-5212 implements
the `3.7.0` one.

Fixes gh-5201
Closes gh-5211
Ref gh-5212
2023-03-14 22:32:45 +01:00
Michał Gołębiowski-Owczarek
68aa2ef757
Selector: Stop relying on CSS.supports( "selector(...)" )
`CSS.supports( "selector(...)" )` has different semantics than selectors passed
to `querySelectorAll`. Apart from the fact that the former returns `false` for
unrecognized selectors and the latter throws, `qSA` is more forgiving and
accepts some invalid selectors, auto-correcting them where needed - for
example, mismatched brackers are auto-closed. This behavior difference is
breaking for many users.

To add to that, a recent CSSWG resolution made `:is()` & `:where()` the only
pseudos with forgiving parsing; browsers are in the process of making `:has()`
parsing unforgiving.

Taking all that into account, we go back to our previous try-catch approach
without relying on `CSS.supports( "selector(...)" )`. The only difference
is we detect forgiving parsing in `:has()` and mark the selector as buggy.

The PR also updates `playwright-webkit` so that we test against a version
of WebKit that already has non-forgiving `:has()`.

Fixes gh-5194
Closes gh-5206
Ref gh-5098
Ref gh-5107
Ref w3c/csswg-drafts#7676

Co-authored-by: Richard Gibson <richard.gibson@gmail.com>
2023-02-14 10:11:40 +01:00
Michał Gołębiowski-Owczarek
2e644e8450
Selector: Backport jQuery selection context logic to selector-native
This makes:
```js
$div.find("div > *")
```
no longer matching children of `$div`.

Also, leading combinators now work, e.g.:
```js
$div.find( "> *" );
```
returns children of `$div`.

As a result of that, a number of tests are no longer skipped in the
`selector-native` mode.

Also, rename `rcombinators` to `rleadingCombinator`.

Fixes gh-5185
Closes gh-5186
Ref gh-5085
2023-02-13 18:34:41 +01:00
Michał Gołębiowski-Owczarek
a7ed9a7b63
Ajax: Support binary data (including FormData)
Two changes have been applied:
* prefilters are now applied before data is converted to a string;
  this allows prefilters to disable such a conversion
* a prefilter for binary data is added; it disables data conversion
  for non-string non-plain-object `data`; for `FormData` bodies, it
  removes manually-set `Content-Type` header - this is required
  as browsers need to append their own boundary to the header

Ref gh-4150
Closes gh-5197
2023-02-01 13:48:35 +01:00
Michał Gołębiowski-Owczarek
0b9c5037f7
Deferred: Respect source maps in jQuery.Deferred.exceptionHook
So far, `jQuery.Deferred.exceptionHook` used to log error message and stack
separately. However, that breaks browser applying source maps against the stack
trace - most browsers require logging an error instance. This change makes us
do exactly that.

One drawback of the change is that in IE 11 previously stack was printed
directly and now just the error summary; to get to the actual stack
trace, three clicks are required. This seems to be a low price to pay
for having source maps work in all the other browsers, though.

Safari with the new change requires one click to get to the stack trace
which sounds manageable.

Fixes gh-3179
Closes gh-5192
Ref https://crbug.com/622227
2023-02-01 13:46:44 +01:00
Michał Gołębiowski-Owczarek
6d1364431b
Ajax: Support headers for script transport even when cross-domain
The AJAX script transport has two versions: XHR + `jQuery.globalEval` or
appending a script tag (note that `jQuery.globalEval` also appends a
script tag now, but inline). The former cannot support the `headers`
option which has so far not been taken into account.

For jQuery 3.x, the main consequence was the option not being respected
for cross-domain requests. Since in 4.x we use the latter way more
often, the option was being ignored in more cases.

The transport now checks whether the `headers` option is specified and
uses the XHR way unless `scriptAttrs` are specified as well.

Fixes gh-5142
Closes gh-5193
2023-02-01 13:40:55 +01:00
Michał Gołębiowski-Owczarek
b02a257f98
Build: Run GitHub Action browser tests on Playwright WebKit
So far, we've been running browser tests on GitHub Actions in Chrome
and Firefox. Regular Safari is not available in GitHub Actions but
Playwright WebKit comes close to a dev version of Safari.

With this change, our GitHub CI & local test runs will invoke tests on
all actively developed browser engines on all PRs.

Also, our GitHub Actions browser tests are now running on Node.js 18.

Detection of the Playwright WebKit browser in support unit tests is done
by checking if the `test_browser` query parameter is set to `"Playwright"`;
this is a `karma-webkit-launcher` feature. Detecting that browser via
user agent as we normally do is hard as the UA on Linux is very similar
to a real Safari one but it actually uses a newer version of the engine.

In addition, we now allow to pass custom browsers when one needs it;
e.g., to run the tests in all three engines on Linux/macOS, run:
```
grunt && BROWSERS=ChromeHeadless,FirefoxHeadless,WebkitHeadless grunt karma:main
```

Closes gh-5190
2023-01-23 23:49:44 +01:00
Michał Gołębiowski-Owczarek
09d988b774
Selector: Make selector lists work with qSA again
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
2022-12-19 18:43:30 +01:00
Michał Gołębiowski-Owczarek
024d87195a
Core:Selector: Move jQuery.contains from the selector to the core module
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
2022-12-12 22:27:59 +01:00
Michał Gołębiowski-Owczarek
5266f23cf4
Selector: Implement the uniqueSort chainable method
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
2022-11-28 18:10:33 +01:00
Michał Gołębiowski-Owczarek
716130e094
Tests: Indicate Firefox 106+ passes the cssSupportsSelector test
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
2022-11-25 00:54:56 +01:00
Michał Gołębiowski-Owczarek
4c1171f2ed
Selector: Re-introduce selector-native.js
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
2022-11-21 23:23:39 +01:00
Michał Gołębiowski-Owczarek
3299236c89
Selector:Manipulation: Fix DOM manip within template contents
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
2022-11-14 23:17:23 +01:00
Michał Gołębiowski-Owczarek
74978b7e89
Ajax: Support null as success functions in jQuery.get
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
2022-10-17 18:54:28 +02:00
Michał Gołębiowski-Owczarek
8c7da22cae
Selector: Drop support for legacy pseudos, test custom pseudos
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
2022-10-11 11:55:46 +02:00
Michał Gołębiowski-Owczarek
ee6e874075
Manipulation: Extract domManip to a separate file
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
2022-10-10 18:15:34 +02:00
Michał Gołębiowski-Owczarek
e7ffe1f135
Tests: Remove a workaround for a Firefox XML parsing issue
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
2022-10-03 22:53:39 +02:00
Michał Gołębiowski-Owczarek
7eb0019640
CSS: Return undefined for whitespace-only CSS variable values (#5120)
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
2022-10-03 18:10:42 +02:00
Anders Kaseorg
ed306c0261
CSS: Don’t trim whitespace of undefined custom property
Fixes gh-5105
Closes gh-5106

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2022-09-19 23:08:12 +02:00
Michał Gołębiowski-Owczarek
d153c375e6
Selector: Use jQuery :has if CSS.supports(selector(...)) non-compliant
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
2022-09-19 20:56:02 +02:00
Michał Gołębiowski-Owczarek
fae5fee8b4
Tests: Exclude tests based on compilation flags, not API presence
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
2022-06-28 12:39:01 +02:00
Michał Gołębiowski-Owczarek
6c2c7362fb
Effects: Remove jQuery.fx.interval
`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
2022-03-01 14:11:50 +01:00
Michał Gołębiowski-Owczarek
af1cd6f218
Tests: Workaround an XML parsing bug in Firefox
See https://bugzilla.mozilla.org/show_bug.cgi?id=1751796

Closes gh-5018
2022-02-28 18:26:53 +01:00
Michał Gołębiowski-Owczarek
a338b407f2
CSS: Skip falsy values in addClass( array ), compress code
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
2022-01-24 18:56:49 +01:00
Bruno PIERRE
9c6f64c7b5
Core: Don't rely on splice being present on input
Without this fix calling `jQuery.uniqueSort` on an array-like can result in:

TypeError: results.splice is not a function
    at Function.jQuery.uniqueSort (https://code.jquery.com/jquery-git.js:664:12)
    at jQuery.fn.init.find (https://code.jquery.com/jquery-git.js:2394:27)
    at gocusihafe.js:3:4

Closes gh-4986
2022-01-24 18:55:16 +01:00
Michał Gołębiowski-Owczarek
eb9ceb2fac
Docs: Fix incorrect trac-NUMBER references
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
2022-01-12 23:23:42 +01:00
Michał Gołębiowski-Owczarek
5d5ea01511
Docs: Replace #NUMBER Trac issue references with trac-NUMBER
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
2022-01-04 16:27:18 +01:00
Michał Gołębiowski-Owczarek
00c060d161
Tests: Skip ETag AJAX tests on TestSwarm
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
2021-12-01 12:46:33 +01:00
Michał Gołębiowski-Owczarek
19ced963c6
Tests: Allow statusText to be "success" in AJAX tests
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
2021-12-01 12:46:17 +01:00
Michał Gołębiowski-Owczarek
4250b62878
Attributes: Don't stringify attributes in the setter
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
2021-11-01 18:10:23 +01:00
Michał Gołębiowski-Owczarek
de5398a6ad
Core:Manipulation: Add basic TrustedHTML support
This ensures HTML wrapped in TrustedHTML can be used as an input to jQuery
manipulation methods in a way that doesn't violate the
`require-trusted-types-for` Content Security Policy directive.
This commit builds on previous work needed for trusted types support, including
gh-4642 and gh-4724.

One restriction is that while any TrustedHTML wrapper should work as input
for jQuery methods like `.html()` or `.append()`, for passing directly to the
`jQuery` factory the string must start with `<` and end with `>`; no trailing
or leading whitespaces are allowed. This is necessary as we cannot parse out
a part of the input for further construction; that would violate the CSP rule -
and that's what's done to HTML input not matching these constraints.

No trusted types API is used explicitly in source; the majority of the work is
ensuring we don't pass the input converted to string to APIs that would
eventually assign it to `innerHTML`. This extra cautiousness is caused by the
API being Blink-only, at least for now.

The ban on passing strings to `innerHTML` means support tests relying on such
assignments are impossible. We don't currently have such tests on the `main`
branch but we used to have many of them in the 3.x & older lines. If there's
a need to re-add such a test, we'll need an escape hatch to skip them for apps
needing CSP-enforced TrustedHTML.

See https://web.dev/trusted-types/ for more information about TrustedHTML.

Fixes gh-4409
Closes gh-4927
Ref gh-4642
Ref gh-4724
2021-09-30 16:00:24 +02:00
fecore1
efadfe991a
CSS: Trim whitespace surrounding CSS Custom Properties values
The spec has recently changed and CSS Custom Properties values are trimmed now.
This change makes jQuery polyfill that new behavior for all browsers.

Ref w3c/csswg-drafts#774
Fixes gh-4926
Closes gh-4930
2021-09-23 13:35:18 +02:00
Michał Gołębiowski-Owczarek
2f8f39e457
Manipulation: Don't remove HTML comments from scripts
When evaluating scripts, jQuery strips out the possible wrapping HTML comment
and a CDATA section. However, all supported browsers are already doing that
when loading JS via appending a script tag to the DOM which is how we've been
doing `jQuery.globalEval` since jQuery 3.0.0. jQuery logic was imperfect, e.g.
it just stripped the `<!--` and `-->` markers, respectively at the beginning or
the end of the script contents. However, browsers are also stripping everything
following those markers in the same line, treating them as single-line comments
delimiters; this is now also mandated by ECMAScript 2015 in Annex B. Instead
of fixing the jQuery logic, just let the browser do its thing.

We also used to strip CDATA sections. However, this shouldn't be needed as in
XML documents they're already not visible when inspecting element contents and
in HTML documents they have no meaning. We've preserved that behavior for
backwards compatibility in 3.x but we're removing it for 4.0.

Fixes gh-4904
Closes gh-4906
2021-07-19 19:04:23 +02:00
Timo Tijhof
482f846203
Tests: Switch background image from online file to local 1x1.jpg
Also, remove unused `expected` property in `css` test cases.

Closes gh-4866
2021-05-24 18:23:50 +02:00
Michał Gołębiowski-Owczarek
e539bac79e
Event: Don't break focus triggering after .on(focus).off(focus)
The `_default` function in the special event settings for focus/blur has
always returned `true` since gh-4813 as the event was already being fired
from `leverageNative`. However, that only works if there's an active handler
on that element; this made a quick consecutive call:

```js
elem.on( "focus", function() {} ).off( "focus" );
```

make subsequent `.trigger( "focus" )` calls to not do any triggering.

The solution, already used in a similar `_default` method for the `click` event,
is to check for the `dataPriv` entry on the element for the focus event
(similarly for blur).

Fixes gh-4867
Closes gh-4885
2021-05-10 18:59:14 +02:00
Michał Gołębiowski-Owczarek
50e8e84621
Tests: Make more tests run natively in Chrome & Firefox
Chrome & Firefox now support complex `:not()` selectors so those test can run
in them even without custom jQuery selector code. In the past, it was only
possible in Safari, now we only need to exclude IE.

Closes gh-4864
2021-04-13 22:11:45 +02:00
Michał Gołębiowski-Owczarek
8ae477a432
Build: Rename master to main across the repository
The default branch was updated, this updates the remaining occurrences in code
& comments.

Closes gh-4838
2021-02-05 22:00:56 +01:00