title: AngularJs 1.5 $httpBackend conditional passThrough()
body: <p>I want to intercept every call and invoke passtTrough() on all of them , logging the details.</p>
  
  <p>something like :</p>
  
  <pre><code> $httpBackend.whenGET(/\/*/).respond(function(method, url, data, headers) {
    if(!condition){
        //call passThrough()
    }else{
        //return my mocked object
        return [200, MyTest, {/*headers*/}];
     }    
  }
  </code></pre>
  
  <p>But the API for   $httpBackend.whenGET only lets you either call passThrough() or respond()</p>