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fix(call): re-evaluate injected CSS when remote theme styles load #1528

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Merged
nushea merged 1 commit into from
Jul 31, 2026
+8 −0
Merged

fix(call): re-evaluate injected CSS when remote theme styles load #1528

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8 changes: 8 additions & 0 deletions src/app/plugins/call/CallEmbed.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,7 @@ export class CallEmbed {
perParticipantE2EE: room.hasEncryptionStateEvent().toString(),
lang: 'en-EN',
theme: themeKind,
background: 'solid',
header: 'none',
});

Expand Down Expand Up @@ -446,6 +447,7 @@ export class CallEmbed {
const doc = this.document;
if (!doc) return;

doc.documentElement.style.setProperty('background', 'none', 'important');
doc.body.style.setProperty('background', 'none', 'important');

// Copy stylesheets from parent just in case
Expand Down Expand Up @@ -757,6 +759,7 @@ export class CallEmbed {
font-family: ${appFontFamily} !important;
}
`;
if (doc.head.lastChild !== styleEl) doc.head.appendChild(styleEl);
};

// Sync theme classes from parent html/body
Expand All @@ -783,7 +786,12 @@ export class CallEmbed {
attributes: true,
attributeFilter: ['class', 'data-theme', 'style'],
});
observer.observe(document.head, { childList: true, subtree: true });
this.disposables.push(() => observer.disconnect());

const iframeHeadObserver = new MutationObserver(syncThemeClasses);
iframeHeadObserver.observe(doc.head, { childList: true });
this.disposables.push(() => iframeHeadObserver.disconnect());
}

private onEvent(ev: MatrixEvent): void {
Expand Down
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