I have a basic page that previews documents in our repository with http://docs.google.com/viewer?url=For instance http://docs.google.com/viewer?url=https://www.whitehouse.gov/sites/default/files/omb/egov/digital-government/digital-government-strategy.pdfShould display the White House PDF.  This has worked flawlessly for the last 6 years.  This last week it stopped displaying content.  I can't find any announcement or info on this.
Google Docs Viewer returning no content
google documents;google api