Blocked Plug-in in Safari 10.1 I'm running El Captain 10.11.6 (15G1421) with all updates. I've recently updated to Safari 10.1 (11603.1.30.0.34) and now I get "Blocked Plug-in" whenever I click on Gmail links that lead to a PDF or even to a web page that links to a PDF.



Copying the link and opening it on a new window or tab works just fine! So does control-click,but not option-click or command-click.

Is there a fix or a better workaround? Can we tell Safari to always open PDFs in Preview?

Opening a console shows


  Refused to load http://URL/foo.pdf because it does not appear in the object-src directive of the Content Security Policy.


Here is my full Installed Plugins list:


Google Talk Plugin
Google Talk Plugin Video Renderer
Java Applet Plug-in
and a online banking plugin.


I do have Adobe Reader 10.1.16 installed but I don't think I've installed a browser plugin for that. The "Blocked Plug-in" message does not mention Adobe.

The problem also occurs in a different machine also running El Captain that does not have Adobe Reader.
Without clicking the back button (or Command-[ ) of the browser:


Although the plugin is blocked, you can still use Command-S (or File > Save As) as well as File > Export as PDF to save the file to a folder.


Alternatively, click the back button (or Command-[ ), and then:


Option-click on the original link to download the file
Command-click opens the PDF in a new tab (PDF will not be blocked)
Ctrl-click yields the option "Download linked file as"