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Description of problem:
Empty page appears after page refresh when in cluster management (for example on "overview" tab)   


Version-Release number of selected component (if applicable):
found in pcs-0.11.6-1.el9


How reproducible:
always


Steps to Reproduce:
1. open web ui
2. add existing cluster
3. click on the added cluster
4. hit refresh (ctrl+f5) when on overview tab or whenever in the cluster management


Actual results:
Empty page with console errors:
The resource from “https://virt-496.cluster-qe.lab.eng.brq.redhat.com:2224/ui/cluster/static/js/adapter.js” was blocked due to MIME type (“text/html”) mismatch (X-Content-Type-Options: nosniff).
The resource from “https://virt-496.cluster-qe.lab.eng.brq.redhat.com:2224/ui/cluster/static/css/main.a9ca1cc6.css” was blocked due to MIME type (“text/html”) mismatch (X-Content-Type-Options: nosniff).
The resource from “https://virt-496.cluster-qe.lab.eng.brq.redhat.com:2224/ui/cluster/static/js/main.38764be0.js” was blocked due to MIME type (“text/html”) mismatch (X-Content-Type-Options: nosniff).

Expected results:
Page is refreshed without issues

Additional info:
This issue is not present in RHEL9.2

https://github.com/ClusterLabs/pcs-web-ui/commit/074e24f039a5bdfa81d17feb390dd342eda5ba73

DevTestResults:

[root@r09-03-b ~]# rpm -q pcs
pcs-0.11.6-3.el9.x86_64

Several pages were tried and refreshing doesn’t cause a blank page to appear. The pages reloaded normally after the refresh.

BEFORE:
=======

see comment 0


AFTER:
======

[root@virt-537 ~]# rpm -q pcs
pcs-0.11.6-3.el9.x86_64


1. open web ui (https://<hostname>:2224) and log in
2. add existing cluster
3. click on the added cluster
4. hit refresh (ctrl+f5)

> OK: Page is refreshed without issues, tried on tabs Overview, Nodes, Resources, Fence Devices, SBD, Constraints, Properties, ACL and Permissions


Marking as VERIFIED for pcs-0.11.6-3.el9.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Low: pcs security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:6316