Error Message "Could not convert to PDF" when trying to print a pdf from an HTTPS webpage
<p>When using the API call for '<a href="https://www.google.com/cloudprint/submit" rel="nofollow">https://www.google.com/cloudprint/submit</a>'. Here's the response</p>

<pre><code>"success": false,
 "message": "Could not convert to PDF.",
 "request": {
  "time": "0",
  "users": [
   "akostin..."
  ],
  "params": {
   "printerid": [
    "530fcc06-0057-4154-f4a1-85219154aff1"
   ]
  },
  "user": "akostin..."
 },
 "errorCode": 403
</code></pre>

<p>What promblem could be?</p>