Hosting Html5 game on github

Greetings, I packaged an html5 project and uploaded it into the repository of github. Through github I was able to open my index file that was inside the repository by putting jbuilding_tester. I am able to at least get to the screen where I see the resume, pause, and fullscreen buttons, however my page is stuck on launching engine.
here is my repository: GitHub - JTISUT/J-s-University: Online School Experience,

The Github Staff told me this:

"Hey Ansar,

It looks like there’s some mixed content warnings that are preventing some of your files from loading.

On these lines, can you please try updating the URLs to use HTTPS instead of HTTP:

That may help with the error you’re running into. Other than that, we’re glad to help with GitHub Pages specific questions, but I would suggest seeking help from the Unreal Engine community for any Unreal specific issues, since we’re not familiar with their product."

Can anyone help me to get my page to load all the way, so that I can share this html5 game online ?

Running the project in Firefox Nightly, I did not find mixed content warnings, but did find an error

DebugBreak() called!
    at FPakFile::Initialize(FArchive*) (:29082401:1)
    at FPakFile::FPakFile(IPlatformFile*, wchar_t const*, bool) (:29081190:1)
    at FPakPlatformFile::Mount(wchar_t const*, unsigned int, wchar_t const*) (:29070602:1)
    at FPakPlatformFile::Initialize(IPlatformFile*, wchar_t const*) (:28922589:1)
    at ConditionallyCreateFileWrapper(wchar_t const*, IPlatformFile*, wchar_t const*, bool*, bool*) (:873428:1)
    at LaunchCheckForFileOverride(wchar_t const*, bool&) (:853187:1)
    at FEngineLoop::PreInit(wchar_t const*) (:837933:1)
    at FEngineLoop::PreInit(int, wchar_t**, wchar_t const*) (:835530:1)
    at HTML5_Init() (:831672:1)
    at _main (:874722:1)
    at Module._main (52c52a08-e1f1-7040-a79a-b26cd9236040:1:771111)
    at callMain (52c52a08-e1f1-7040-a79a-b26cd9236040:1:1015032)
    at doRun (52c52a08-e1f1-7040-a79a-b26cd9236040:1:1015915)
    at run (52c52a08-e1f1-7040-a79a-b26cd9236040:1:1016101)
    at runCaller (52c52a08-e1f1-7040-a79a-b26cd9236040:1:1014356)
    at removeRunDependency (52c52a08-e1f1-7040-a79a-b26cd9236040:1:30823)
    at withIndexedDB/< (:1196:4)

which causes a failure to load. It looks like the project is a Shipping build? If so, try doing a Development build, and then retry. In web browser console, you can try typing

document.getElementById('logwindow').style.display = 'block';

to show the run log window on the page after the failure occurs to see if there might exist any more error messages present.

Thank You for responding. I have tried the development build a few times before switching to shipping build. I was getting the same result. I’ll try again and let you know if I get something different.