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"Uncaught TypeError: Cannot read properties of undefined (reading 'addListener')"

// Add cleanup listener for extension unload using proper API
chrome.runtime.onSuspend.addListener(() => {
  console.log('[Debug] Extension suspending - performing cleanup');
  cleanup();
});

Uncaught Error: Extension context invalidated.

 if (node instanceof HTMLIFrameElement) {
  node.addEventListener('load', () => {
    try {
          if (node.contentDocument && node.contentWindow) {
                addKeyListeners(node.contentDocument);
              } else {
                console.warn('Using postMessage for cross-origin iframe communication');
// Initialize iframe with expansion capabilities
                node.contentWindow.postMessage({

I am trying to create an extension for Text expansion where upon key combination trigger; the shortcut word should expand to its defined expansion.

本文标签： javascriptEncountering error when I trying run the extension on chromeStack Overflow

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