title: Error in event handler: TypeError: Cannot read property 'apply' of undefined when I load my pages
body: <p>I am editing a codeIgniter application purchased online which have no support, everything is OK but javascript codes are not working, it keeps giving this error message</p>
  
  <p><code>Error in event handler: TypeError: Cannot read property 'apply' of undefined
      at w.g.P (chrome-extension://ngpampappnmepgilojfohadhhmbhlaek/content.js:22:354)
      at w.g.na (chrome-extension://ngpampappnmepgilojfohadhhmbhlaek/content.js:4:214)</code></p>
  
  <p>and when continue viewing the page it says</p>
  
  <p><code>content.js:21 Uncaught Error: Attempting to use a disconnected port object
      at w.g.ka (content.js:21)</code></p>
  
  <p>But actually in my directories I don't see the page named <code>content.js</code></p>
  
  <p>How can I solve this error? and finally have my javascript functions working?
  Thank you.</p>