Javascript - Authentication

The challenge seems like authentication bypass or something like this. I have stated the chall and it bring me to login page.

I tried login using default password and username like admin & admin OR admin & pass but didn't work.

After that I continue to look over source code. There I can find a JS script called login.js, in which we got our creds.

I submitted the password as password, and yahu it got solved.

lesson learned,

Always read source code, alware inspect even if its a 404 page : )