Your ROOT_URL in app.ini is https://bdgit.educoder.net/ but you are visiting http://bdgit.educoder.net/rcore_test/rCore-Tutorial-v3-tests/blame/commit/3e1c12b6a1a29da86c8dd640ec9350a788b2fd72/os/build.rs
You should set ROOT_URL correctly, otherwise the web may not work correctly.