Fix URL display after redirects

When navigating to a page that redirects (e.g., auth refresh URLs),
the extension captured the redirect URL instead of the final page URL.

Added webNavigation.onCompleted listener that updates the stored URL
to the final destination after all redirects complete.

Author: bartTC

CF Cache Status/CF Cache Status Extension/Resources/background.js

@@ -183,6 +183,16 @@ browser.webNavigation.onBeforeNavigate.addListener((details) => {
   }
 });
 
+// Update URL after navigation completes (handles redirects)
+browser.webNavigation.onCompleted.addListener((details) => {
+  if (details.frameId === 0) {  // Main frame only
+    const data = tabData.get(details.tabId);
+    if (data && data.url !== details.url) {
+      data.url = details.url;  // Update to final URL after redirects
+    }
+  }
+});
+
 // Capture response headers for main document requests
 browser.webRequest.onHeadersReceived.addListener(
   (details) => {