Problem

The piwikApiService class contains an array called allRequests that it appends to whenever the frontend makes an API request. However, it only clears this array if abortAll is called. Over a session with the Piwik dashboard, the array continues to grow as the frontend makes API requests.

Solution

allRequests should only contain active requests that have not yet completed, as it is only used by abortAll.

A simple solution is to remove requests when they complete. To do this, change line 170 to the following:

allRequests.push(request);
promise.finally(function() {
  var index = allRequests.indexOf(request);
  if (index !== -1) {
    allRequests.splice(index, 1);
  }
});