title: Laravel is unable to read formdata
body: <p>I am making a web app, using angular on the frontend and laravel on the backend. 
  But I am getting some issues when I am trying to upload some data to the laravel API. </p>
  
  <p>I am using on Angular the formdata, because I need it for upload files. But when I send the data to Laravel, it does not pass the validation, because Laravel is getting empty data.</p>
  
  <p>This is the function that is called on submit.</p>
  
  <pre><code>  onUpload() {
      const fd = new FormData;
      fd.append('video', this.video);
      fd.append('image', this.image);
      fd.append('title', 'Hello world');
      fd.append('description', 'Hello world');
      fd.append('userId', '1');
      fd.append('categoryId', '1');
  
      const headers = new HttpHeaders({
        'Content-Type': 'application/json'
      });
  
      this.http.post('here goes the real url', fd, {
        headers: headers
      }).subscribe(event =&gt; {
          console.log(event);
      });
    }
  </code></pre>
  
  <p>And this is my validator on Laravel.</p>
  
  <pre><code>    public function rules(){
          $datos = $this-&gt;validationData();
          return [
              "description" =&gt; ["max:2000"],
              "video" =&gt; ["required", "mimes:mp4,mov,ogg"],
              "image" =&gt; ["required", "image", "mimes:jpg,jpeg,png,gif,webp"],
              "title" =&gt; ["required","min:4", "max:100"],
              "userId" =&gt; ["required", "numeric"],
              "categoryId" =&gt;["numeric"]
          ];
      }
  </code></pre>
  
  <p>And also, this is the error message:</p>
  
  <pre><code>errors:
  image: ["The image field is required."]
  title: ["The title field is required."]
  video: ["The video field is required."]
  userId: ["The user id field is required."]
  __proto__: Object
  message: "The given data was invalid."
  </code></pre>
  
  <p>I need something extra on Laravel to read the data? Or I am uploading wrong?
  Thanks you a lot for your time.</p>