Was able to write in bucket after mounting the bucket into Laravel public folder (using gcsfuse), but unable to read

Question

So I am currently working on an API app, and I am trying to mount the bucket into my Laravel app inside public folder. It all went well,

and I even managed to write into the disk, but it's very weird that I couldn't open the file through URL (e.g. localhost:8000/mountedimgdir/img.png) despite I could open other files inside public dir through the same means.

I tried doing chmod and some other suggestion from other threads, but the problem still persists.