Bug: URIError: Failed to decode param '//%PUBLIC_URL%/favicon.ico'

[kouayip]

I get a console error when I add '//' to the end of my address

React version: 17.0.2

Steps To Reproduce

1. add '//' to the end of the url

Adress: http://localhost:3000//

Code console error:

GET http://localhost:3000//%PUBLIC_URL%/favicon.ico 400 (Bad Request)

manifest.json:1 GET http://localhost:3000//%PUBLIC_URL%/manifest.json 400 (Bad Request)

manifest.json:1 Manifest: Line: 1, column: 1, Syntax error.

[kouayip]

the error is only displayed in developer mode

[await-ovo]

@gaearon Hey, I have tried other tools like Docusaurus, Vue CLI and all have the same problem, not sure if this is a bug or not.

The reason for the error is that accessing // returns index.html in the public directory. Setting webpack-dev-server's static.staticOptions.index to false should avoid this problem.

Wondering if it's possible to set this in react-scripts by default? thx

[redpredator8]

Fix: if you have github, revert to the last change you did / unistall recent libraries

I updated my mac and this started happening, was killing my brain tbh. Im pretty sure it was bc i installed firebase tools and that messed up something because i updated my mac and maybe smth didnt save by mac time-machine so it was throwing a weird hidden syntax error that was preventing the app to be displayed. I tried fixing all the errors like the guys up top are saying fixing the links etc but brand new shit was popping up and I was like nahh. no way i have to recode Node to fix this shit.

Options: Revert to previous version / uninstall recent installed libraries / Create a new react app and just copy your src folder to the new app

leave a thubs up: )

[sanyasappadu]

create-react-app is no more maintained. Suggested to use vite