Can't resize process window when there is download file in chrome browser

[skryzhny]

When I have download in progress or already downloaded files I can't resize process window.
See scriinshot

Reproduction Steps:

1. Download some files in Chrome browser
2. Start workspace in Che/Codenvy

Expected behavior:

Process window in maximized mode can be resized

Observed behavior:

Processes window in maximized mode can't be resized

Che version: 5.0.0-M7
OS and version: Centos 7.2
Docker version: 1.11.1
Che install: Codenvy

Additional information:

• Problem started happening recently, didn't happen in an older version of Che: No idea
• Problem can be reliably reproduced, doesn't happen randomly: Yes
  

[svor]

Can't reproduce for 5.0.0-M9-SNAPSHOT