Chrome Version:64.0.3282.24/10176.13.0 Kip,Daisy,Reks
OS:Chrome OS

What steps will reproduce the problem?
(1)Sign-in to user>> Add Pixlr editor app
(2)Now open the app as a window and click anywhere on the window and observe

Actual: Unwanted leave this site dialog box is seen
Expected: Instead, it should not be seen

This is a Regression issue as same is working fine in M61

NOTE: Issue is also seen on M62,M63 and M65.