title: Linkedin OAuth pictureUrl leading to a 500 error
body: <p>Until this morning, for the last 2 years I experienced no issues with the Linkedin Oauth system I have implemented. I can verify that all the data is still coming through, but suddenly a very strange issue has come up with the <code>pictureUrl</code> parameter of the returned data. It no longer leads to an image, and instead leads to a page which looks like this:</p>
  
  <p><a href="https://i.stack.imgur.com/k5FXv.png" rel="noreferrer"><img src="https://i.stack.imgur.com/k5FXv.png" alt="enter image description here"></a></p>
  
  <p>I can't figure out what has gone wrong, any advice would be greatly appreciated. All other data is coming through just fine.</p>