bug #48993 [VarDumper] Fix JS to expand / collapse (nicolas-grekas)

nicolas-grekas · nicolas-grekas · commit bf901b89c085 · 2023-01-16T19:20:49.000+01:00
This PR was merged into the 5.4 branch. Discussion ---------- [VarDumper] Fix JS to expand / collapse | Q | A | ------------- | --- | Branch? | 5.4 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #48545 | License | MIT | Doc PR | - As hinted in facebook/react#25897 (comment) Commits ------- 19add97 [VarDumper] Fix JS to expand / collapse
diff --git a/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php b/src/Symfony/Component/VarDumper/Dumper/HtmlDumper.php
@@ -167,9 +167,9 @@ protected function getDumpHeader()
     };
 
 refStyle.innerHTML = 'pre.sf-dump .sf-dump-compact, .sf-dump-str-collapse .sf-dump-str-collapse, .sf-dump-str-expand .sf-dump-str-expand { display: none; }';
-(doc.documentElement.firstElementChild || doc.documentElement.children[0]).appendChild(refStyle);
+doc.head.appendChild(refStyle);
 refStyle = doc.createElement('style');
-(doc.documentElement.firstElementChild || doc.documentElement.children[0]).appendChild(refStyle);
+doc.head.appendChild(refStyle);
 
 if (!doc.addEventListener) {
     addEventListener = function (element, eventName, callback) {
