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Use `firstElementChild` instead of `childElementCount` 

Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/1620

Related bugzilla issue:
- https://bugzilla.mozilla.org/show_bug.cgi?id=1715841
This commit is contained in:
Raymond Hill 2021-06-17 09:58:18 -04:00
parent 6291168e9a
commit 090614dd18
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1 changed files with 2 additions and 2 deletions
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4
src/js/contentscript.js
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@ -935,7 +935,7 @@ vAPI.DOMFilterer = class {
if ( node.localName === 'iframe' ) {
addIFrame(node);
}
if ( node.childElementCount === 0 ) { continue; }
if ( node.firstElementChild === null ) { continue; }
const iframes = node.getElementsByTagName('iframe');
if ( iframes.length !== 0 ) {
addIFrames(iframes);
@ -1175,7 +1175,7 @@ vAPI.DOMFilterer = class {
while ( i-- ) {
const node = addedNodes[i];
pendingNodes.add([ node ]);
if ( node.childElementCount === 0 ) { continue; }
if ( node.firstElementChild === null ) { continue; }
pendingNodes.add(node.querySelectorAll('[id],[class]'));
}
if ( pendingNodes.hasNodes() ) {