I'm using recordRTC (Link: https://medium.com/@coolchoudharyvijay/use-mic-in-angular-to-record-audio-simplified-1374d89718d3)

  this.record.stop(this.processRecording.bind(this));

calling this function

  processRecording(blob,event_name) {
   this.url = URL.createObjectURL(blob);

this is working but when i try to pass parameter to processRecording method

   this.record.stop(this.processRecording.bind(this,param));

then getting this error

ERROR TypeError: Failed to execute 'createObjectURL' on 'URL': Overload resolution failed.