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From "Robin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GUACAMOLE-128) Clipboard sharing can crash IE
Date Mon, 28 Nov 2016 09:54:59 GMT

    [ https://issues.apache.org/jira/browse/GUACAMOLE-128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15701488#comment-15701488
] 

Robin commented on GUACAMOLE-128:
---------------------------------

Hello,

Many thanks for your reply.  

1. After a few tests it is apparent that just 500 lines of text/numbers like this is enough:
 http://pastebin.com/8cPa4qth

2. Initially the issue was noticed in Excel 2007 but I can reproduce it in notepad or any
application I can copy text from.

3. I have been testing with 11.672.10586.0

4. IE11 on Windows 7 and windows 10 both suffer from the issue.

5. Can reproduce with Notepad and Excel 2007/2016

6. Windows 2012 R2 (6.3.9600)

I can share videos of the issue or test with other browser versions/applications if it helps
at all?

Kind regards,

> Clipboard sharing can crash IE
> ------------------------------
>
>                 Key: GUACAMOLE-128
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-128
>             Project: Guacamole
>          Issue Type: Bug
>          Components: guacd-docker
>    Affects Versions: 0.9.10-incubating
>         Environment: Ubuntu 16 using docker containers from latest 0.9.10
>            Reporter: Robin
>
> Using internet explorer 11 with "programmatic clipboard access enabled" you can crash
the browser and consume high CPU on the client when placing a large amount of data on the
clipboard.  (1600 lines of text is enough)
> A work around is to disable "Programmatic clipboard access"  - While this works on other
browsers and is almost certainly an IE 11 issue it would be a good feature to detect the client
browser and disable this functionality to prevent a crash.



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