Error message:
Error in event handler: TypeError: Cannot read property 'name' of undefined
at f (chrome-extension://ijllcpnolfcooahcekpamkbidhejabll/bundle/contentscripts.js:1:3088)
at chrome-extension://ijllcpnolfcooahcekpamkbidhejabll/bundle/contentscripts.js:1:4325
at chrome-extension://ijllcpnolfcooahcekpamkbidhejabll/bundle/contentscripts.js:1:6034
The real reason:
Chrome browser plug-ins to expand the program caused by bug, close to the plug.