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Twenty Twenty-One: Check if anchor exists before triggering in-page navigation.

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This prevents JavaScript errors when using hash in URLs without matching them to any existing anchor in the page.

Props rixeo, sabernhardt, pbearne.
Fixes #53619.


git-svn-id: https://develop.svn.wordpress.org/trunk@52213 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jb Audras 2021-11-19 13:01:23 +00:00
parent c08e51cc88
commit 48fe42e9d2
1 changed files with 3 additions and 1 deletions
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4
src/wp-content/themes/twentytwentyone/assets/js/primary-navigation.js
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@ -180,7 +180,9 @@ function twentytwentyoneExpandSubMenu( el ) { // jshint ignore:line
// Wait 550 and scroll to the anchor.
setTimeout(function () {
var anchor = document.getElementById(event.target.hash.slice(1));
anchor.scrollIntoView();
if ( anchor ) {
anchor.scrollIntoView();
}
}, 550);
}
} );