#8206: Avoid Edge crash when opening user links (#8211)

src/utils/openAllLinksInPopups.ts

@@ -18,11 +18,14 @@
 import excludeAltClicksEtc from "filter-altered-clicks";
 
 const listener = excludeAltClicksEtc((event: MouseEvent) => {
-  // `event.target` can sometimes be an SVG path element and not an HTMLElement
-  const link = event.target instanceof Element && event.target.closest("a");
-  if (link) {
-    window.open(link.href);
-    event.preventDefault();
+  // `composedPath` is used to support clicks in an `open` Shadow DOM
+  // https://github.com/pixiebrix/pixiebrix-extension/issues/8206
+  for (const eventTarget of event.composedPath()) {
+    if (eventTarget instanceof HTMLAnchorElement) {
+      window.open(eventTarget.href);
+      event.preventDefault();
+      return;
+    }
   }
 });