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https://issues.apache.org/jira/browse/HDFS-13963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16686427#comment-16686427
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Vinayakumar B commented on HDFS-13963:
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[~daisuke.kobayashi]
bq. Sorry for late here. I have checked if it works on my Windows env. in VM
and found that the page is still broken with IE9 mode.
Yes, this test is not same as verifying with "ie=egde". You have used IE-11
and changed the mode to IE-9 in developer tools.
Changing to 'ie=edge' does not change anything (neither break more nor fix
existing issue) on IE 9, but *it fixes the issue on later versions*.
So I feel, this change in [^HDFS-13963-02.patch] is not an incompatible
change, we can go ahead and commit it.
[~elek], do you agree with this.?
[~ayushtkn], please do similar change in the other HTML files of HDFS as well.
> NN UI is broken with IE11
> -------------------------
>
> Key: HDFS-13963
> URL: https://issues.apache.org/jira/browse/HDFS-13963
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode, ui
> Affects Versions: 3.1.1
> Reporter: Daisuke Kobayashi
> Assignee: Ayush Saxena
> Priority: Minor
> Labels: newbie
> Attachments: Document-mode-IE9.png, HDFS-13963-01.patch,
> HDFS-13963-02.patch, Screen Shot 2018-10-05 at 20.22.20.png,
> test-with-edge-mode.png
>
>
> Internet Explorer 11 cannot correctly display Namenode Web UI while the NN
> itself starts successfully. I have confirmed this over 3.1.1 (latest release)
> and 3.3.0-SNAPSHOT (current trunk) that the following message is shown.
> {code}
> Failed to retrieve data from /jmx?qry=java.lang:type=Memory, cause:
> SyntaxError: Invalid character
> {code}
> Apparently, this is because {{dfshealth.html}} runs as IE9 mode by default.
> {code}
> <meta http-equiv="X-UA-Compatible" content="IE=9" />
> {code}
> Once the compatible mode is changed to IE11 through developer tool, it's
> rendered correctly.
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