title: AngularFire (angular 8) storage - uploading documents
body: <p>I want to upload docs, pdfs to firebase in my angular 8 app using angularfire. Everything is set up and mostly working but it only allows uploading image and video file types. Uploading docs, pdfs, or anything else gives 'unsupported file type'. Is there a different method or workaround for this?</p>
  
  <p>(a super hacky, not viable workaround I found was just renaming the doc to .png, and it uploads fine, and can be downloaded, renamed back and opened)</p>