Your ROOT_URL in app.ini is https://git.bwnetwork.us/ but you are visiting http://git.bwnetwork.us/Administrator/Splunk_Docker/src/commit/c5ff9321669ab6b0afd92f1b44aba65f1da5020f/files/splunk-etc/apps/splunk-dashboard-studio/appserver/static/icons
You should set ROOT_URL correctly, otherwise the web may not work correctly.