diff options
Diffstat (limited to 'src/selector.js')
| -rw-r--r-- | src/selector.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/selector.js b/src/selector.js index bc60e61e4..871cf8682 100644 --- a/src/selector.js +++ b/src/selector.js @@ -9,6 +9,7 @@ import whitespace from "./var/whitespace.js"; import rbuggyQSA from "./selector/rbuggyQSA.js"; import rtrim from "./var/rtrim.js"; import isIE from "./var/isIE.js"; +import support from "./selector/support.js"; // The following utils are attached directly to the jQuery object. import "./selector/contains.js"; @@ -252,6 +253,27 @@ function find( selector, context, results, seed ) { } try { + + // `qSA` may not throw for unrecognized parts using forgiving parsing: + // https://drafts.csswg.org/selectors/#forgiving-selector + // like the `:has()` pseudo-class: + // https://drafts.csswg.org/selectors/#relational + // `CSS.supports` is still expected to return `false` then: + // https://drafts.csswg.org/css-conditional-4/#typedef-supports-selector-fn + // https://drafts.csswg.org/css-conditional-4/#dfn-support-selector + if ( support.cssSupportsSelector && + + // eslint-disable-next-line no-undef + !CSS.supports( "selector(" + newSelector + ")" ) ) { + + // Support: IE 11+ + // Throw to get to the same code path as an error directly in qSA. + // Note: once we only support browser supporting + // `CSS.supports('selector(...)')`, we can most likely drop + // the `try-catch`. IE doesn't implement the API. + throw new Error(); + } + push.apply( results, newContext.querySelectorAll( newSelector ) ); |