fix(edge): be ready for non-windowed pages (#40071)

Author: dgozman

packages/playwright-core/src/server/chromium/crPage.ts

@@ -441,8 +441,13 @@ class FrameSession {
     if (!this._page.isStorageStatePage && hasUIWindow &&
       !this._crPage._browserContext._browser.isClank() &&
       !this._crPage._browserContext._options.noDefaultViewport) {
-      const { windowId } = await this._client.send('Browser.getWindowForTarget');
-      this._windowId = windowId;
+      try {
+        const { windowId } = await this._client.send('Browser.getWindowForTarget');
+        this._windowId = windowId;
+      } catch {
+        // Some pages in Edge, like internal UIs, are mis-classified as "page", but do
+        // not actually have a browser window. That's fine, we won't resize them.
+      }
     }
 
     if (this._isMainFrame() && hasUIWindow && !this._page.isStorageStatePage)