SignalR not connecting in react-native 0.80.x update

[RaghavStepron]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Error: Failed to start the connection: TypeError: Cannot assign to property 'pathname' which has only a getter

Error created from :: HttpConnection.js:216

Upon further inspection this error occurs in _resolveNegotiateUrl function on line 473 & 476 in the file HttpConnection.js

Current Package.json
"react": "19.1.0",
"react-native": "0.80.2",
"react-native-url-polyfill": "3.0.0"

We recently updated our project from
"react-native": "0.75.5" to "react-native": "0.80.2"
&
"react": "18.3.1" to "react": "19.1.0",

Expected Behavior

No response

Steps To Reproduce

No response

Exceptions (if any)

No response

.NET Version

No response

Anything else?

No response

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• "Error: URL.pathname not implemented signalr" - @microsoft/signalr V8.0.0 on React-Native 0.72.7  #52071