Why favicon not working instead of using question mark in the end after deploying on github pages

Question

This is what I used but not working after deployed on github pages it still not working with out without question mark. Why?

<link rel="shortcut icon" type="image/x-icon" href="/img/favicon1.ico?">

Answer 1

Simplay user this href="./img/favicon1.ico?" path/href insted href="/img/favicon1.ico?" I just add '.' infront of '/img'.