Cannot run Power BI on Firefox and IE

Hi, All.

I'm trying to embed my report on my web application by using Service Principal method and it works fine on Chrome. However, it does not work on both Firefox and IE 11. It prompted "Please sign in" button and asked me to sign into Power BI.

Turned on "disable cache" in the network tab, clear cache and cookies did help but it allows Power BI to load on the screen for once only and prompts me to sign in afterward.

Tried these few js libraries but did not help either:

• polyfill.js
• https://cdn.jsdelivr.net/npm/es6-promise@4/dist/es6-promise.min.js
• https://cdn.jsdelivr.net/npm/es6-promise@4/dist/es6-promise.auto.min.js

No error was thrown in the console.

Need some guidance/tricks/tips on this. Thanks.