Merge pull request from GHSA-qmf4-7w7j-vf23

src/components/structures/ThreadPanel.tsx

@@ -309,7 +309,7 @@ const ThreadPanel: React.FC<IProps> = ({ roomId, onClose, permalinkCreator }) =>
                         manageReadMarkers={false} // No RM support in thread's MVP
                         sendReadReceiptOnLoad={false} // No RR support in thread's MVP
                         timelineSet={timelineSet}
-                        showUrlPreview={true}
+                        showUrlPreview={false} // No URL previews at the threads list level
                         empty={<EmptyThread
                             filterOption={filterOption}
                             showAllThreadsCallback={() => setFilterOption(ThreadFilterType.All)}

src/components/structures/ThreadView.tsx

@@ -351,7 +351,7 @@ export default class ThreadView extends React.Component<IProps, IState> {
                             manageReadMarkers={true}
                             sendReadReceiptOnLoad={true}
                             timelineSet={this.state?.thread?.timelineSet}
-                            showUrlPreview={true}
+                            showUrlPreview={this.context.showUrlPreview}
                             // ThreadView doesn't support IRC layout at this time
                             layout={this.state.layout === Layout.Bubble ? Layout.Bubble : Layout.Group}
                             hideThreadedMessages={false}

src/components/views/right_panel/TimelineCard.tsx

@@ -248,7 +248,7 @@ export default class TimelineCard extends React.Component<IProps, IState> {
                             manageReadMarkers={false} // No RM support in the TimelineCard
                             sendReadReceiptOnLoad={true}
                             timelineSet={this.props.timelineSet}
-                            showUrlPreview={true}
+                            showUrlPreview={this.context.showUrlPreview}
                             // The right panel timeline (and therefore threads) don't support IRC layout at this time
                             layout={this.state.layout === Layout.Bubble ? Layout.Bubble : Layout.Group}
                             hideThreadedMessages={false}

src/contexts/RoomContext.ts

@@ -60,6 +60,7 @@ const RoomContext = createContext<IRoomState>({
     showAvatarChanges: true,
     showDisplaynameChanges: true,
     matrixClientIsReady: false,
+    showUrlPreview: false,
     timelineRenderingType: TimelineRenderingType.Room,
     threadId: undefined,
     liveTimeline: undefined,