Comment 3 for bug 1778792

Environment tested: Master
Browser tested: Chrome, Firefox and IE 11

PRECONDITIONS:
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1) PDF file exists
2) User exists and has a Portfilio page (site admin)
2) Portfolio page exists and has a PDF block
3) Browsers to test with - Chrome, Firefox and IE 11

TEST STEPS:
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1) Log in as Site admin
2) Browse to the Portfolio page with a PDF block
3) Click the Presentation mode link in the PDF viewer on the page
4) Verify that the PDF is now displayed as full screen and clicking Esc on keyboard will return screen to normal page ✔
5) Verify the above step works for the following browsers ✔
   a) Chrome ✔
   b) Firefox ✔
   c) Internet Explorer v. 11 ✔

Catalyst QA Approved ✔