CMK version: OMD - Open Monitoring Distribution Version 2.1.0p9.cfe
OS version: CentOS 7
Page not loaded properly
Refused to execute script from ‘http://236d309b3a1c.mylabserver.com/kafka/check_mk/js/side_min-2.1.0p9.js’ because its MIME type (‘’) is not executable, and strict MIME type checking is enabled.
Can you provide a little more insight, than this cryptic messages?
Hm, I get the hunch, that there is a web application or next generation firewall in between.
Does this issue happen on several clients and browsers, or only on yours?
I tested with firefox, chrome, safari, the result is the same.
In the firewall http service ia allowed.
The setsebool for httpd_can_network_connect is set to 1.
I have disabled the firewall still the same issue.
What happens with a clean and fresh Firefox without any add-ons?
I do not belive it is a browser issue.
The issue is present in, chrome, firefox, edge and safari.
I found this here: How to disable strict MIME type checking? | SonicWall
Maybe it is your firewall after all?
The link doesn’t help me.
I have changed the OS to ubuntu 20.04 LTS, and the issue is stil present.
The icons loaded are very big:
On this VM there is no firewall.
On Centos is the same, with firwall and selinux disabeld.
I want to use checkmk for a POC and so far I am stuck.
Okay, I feel like a broken record, but let circle back one more time.
Your issue is independent of:
Did I get that right?
Then: Where would you look next? Personally I would look at the network, more specifically the central firewalls, which, as you already shared are next generation firewalls, probably capable of intercepting layer 7. It might also be some kind of IPS or similar. But what I can tell you is this: This is not a Checkmk application problem.
Can you run a local VM on your computer to set up Checkmk, just to double-check?
Which version did you install before?
CMK version: OMD - Open Monitoring Distribution Version 2.1.0p9.cfe
OS version: CentOS 7
I cannot reproduce this error.
Does it also happen with a new 2.1.0p9?
Issue is taking place in Open Monitoring Distribution Version 2.1.0p9.cfe.
Fresh installation
This still feels flaky.
As long as there are not confirming reports, I would consider this an outlier.
I am having the same issue.
Identical issue where none of the icons are displaying.
version 2.1.0p22.cee
VM running Ubuntu 20.04 LTS
This topic was automatically closed 365 days after the last reply. New replies are no longer allowed. Contact an admin if you think this should be re-opened.
