Chrome Version   Chrome 50.0.2661.26 beta    : <Copy from: 'about:version'>
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Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
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Only in this chrome beta:  Using Atlassian Confluence version 5.8.18, the edit document window becomes too tiny to use.  This was reported to me by a user and I veriefied by installing the beta of Chrome. uninstalling the beta and reinstalling the release version of chrome fixes the issue

What steps will reproduce the problem?
(1)install Chrome 50.0.2661.26 beta
(2)navigate to document in Atlassian Confluence 5.8.18
(3)press edit button

What is the expected result?
a normal full screen editor

What happens instead?
a small eye patch window opens instead, making the site unusable.

Please provide any additional information below. Attach a screenshot if
possible.