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[6.x] Fix Live Preview iframe becoming unscrollable after resizing in Chromium #14542

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Merged
jasonvarga merged 1 commit into from
Apr 23, 2026
+13 −1
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[6.x] Fix Live Preview iframe becoming unscrollable after resizing in Chromium #14542

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14 changes: 13 additions & 1 deletion resources/js/components/ui/LivePreview/LivePreview.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -271,6 +271,18 @@ function setEditorWidth(width) {
localStorage.setItem(widthLocalStorageKey, width);
}

function onResizeEnd() {
editorResizing.value = false;

// Chromium doesn't recalculate iframe scroll state after the parent
// container is resized. Toggling a transform forces a reflow. #14540
const iframe = iframeContentContainer.value?.querySelector('iframe');
if (iframe) {
iframe.style.transform = 'translateZ(0)';
requestAnimationFrame(() => iframe.style.transform = '');
}
}

function close() {
if (poppedOut.value) closePopout();

Expand Down Expand Up @@ -343,7 +355,7 @@ Statamic.$events.$on(`live-preview.${name.value}.refresh`, () => {
v-show="!poppedOut"
@resized="setEditorWidth"
@resize-start="editorResizing = true"
@resize-end="editorResizing = false"
@resize-end="onResizeEnd"
@collapsed="collapseEditor"
/>
</div>
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