title: What does "Error: Promised response from onMessage listener went out of scope" mean? Where to get more debug information?
body: <p>I am developing a wordpress site. When running my site I get in the consle the following errors.</p>
  <pre><code>Error: Promised response from onMessage listener went out of scope 3 background.js:841:170
  Error: Promised response from onMessage listener went out of scope ExtensionMessagingService.js:89:34
  Error: Promised response from onMessage listener went out of scope 10 background.js:841:170
  </code></pre>
  <p>Maybe it has to do with a javascript that I also developed for that site. It is using getElementbyID.</p>
  <p>I am not sure to what that error is related. Can somebody explain me what that error means? Is there a way to find more debug information than what is shown in the debug console? I am a newbie in website development.</p>