What were you trying to do that didn't work?

The latest version of doxygen in RHEL 8 does not show the treeview information even when "GENERATE_TREEVIEW" is set to "YES" in the Doxyfile.

In the example below, I have not used any INPUT parameter and worked with empty directory however we still see that in case of older version the treeview displays "My Project" but the new version does not show any information in the treeview.

Screenshot with working older version - doxygen-1.8.14-12.el8

Screenshot with new version doxygen-1.8.14-13.el8_10

In firefox browser console we see the jQuery exceptions as "jQuery.Deferred exception: e.indexOf is not a function"

It seems to point to initResizable on resize.js and initNavTree on navtree.js

jQuery.Deferred exception: e.indexOf is not a function S.fn.load@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/jquery.js:2:84932
initResizable@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/resize.js:134:13
e@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/jquery.js:2:30038
Deferred/then/l/</t<@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/jquery.js:2:30340
 undefined jquery.js:2:31593

jQuery.Deferred exception: e.indexOf is not a function S.fn.load@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/jquery.js:2:84932
initNavTree@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/navtree.js:514:13
@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/index.html:69:41
e@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/jquery.js:2:30038
Deferred/then/l/</t<@file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/jquery.js:2:30340
 undefined jquery.js:2:31593

Uncaught TypeError: e.indexOf is not a function     
load jQuery     
initNavTree file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/navtree.js:514     
<anonymous> file:///home/test/Downloads/doxygen/rhel8/new/doxygen2/html/index.html:69     
jQuery 2         
    e         
    t

What is the impact of this issue to you?

Impact on project documentation of source codes.

Please provide the package NVR for which the bug is seen:

doxygen-1.8.14-13.el8_10.x86_64

How reproducible is this bug?:

Everytime

Steps to reproduce

1. Install latest doxygen on RHEL 8.10

# dnf install doxygen

1. Generated default "Doxyfile"

doxygen -g

1. Edit "Doxyfile" and set "GENERATE_TREEVIEW" to "YES" 
2. Generate HTML content

doxygen Doxyfile

1. View the html file created

firefox html/index.html

Expected results

New version should generated treeview when GENERATE_TREEVIEW is set to YES

Actual results

Currently its not generated treeview even when GENERATE_TREEVIEW is set to YES