bug: CapactorHttp does not pass Authorization header on iOS

[amoscardino]

Bug Report

Capacitor Version

💊   Capacitor Doctor  💊 

Latest Dependencies:

  @capacitor/cli: 4.6.1
  @capacitor/core: 4.6.1
  @capacitor/android: 4.6.1
  @capacitor/ios: 4.6.1

Installed Dependencies:

  @capacitor/android: not installed
  @capacitor/cli: 4.6.1
  @capacitor/ios: 4.6.1
  @capacitor/core: 4.6.1

[success] iOS looking great! 👌

Platform(s)

• iOS

Current Behavior

Making an HTTP request with CapacitorHttp and including an Authorization header results in the actual request to the server missing the header.

Expected Behavior

All headers passed to CapacitorHttp should be passed to the server.

Code Reproduction

I'm not sure how to set up a full replication of this since it requires a server app in addition to the client app. The client code is simple:

const response = await CapacitorHttp.get({
    url: 'https://my.server.domain/api/something'
    headers: {
        'Authorization': `Token MyToken12345`
    }
});

The behavior is the same when using fetch() with the plugin enabled to intercept those requests, too.

Other Technical Details

npm --version output: 8.19.1

node --version output: v16.13.2

pod --version output (iOS issues only): 1.10.1

Additional Context

I asked about this issue on the Ionic Forums here.

After some digging into the Capacitor code, I think the issue is related to URLRequest and how it treats certain headers. Per Apple's documentation, certain headers are reserved and setting them will do nothing. Authorization is one of those headers but there's no other way to pass that header when using CapacitorHttp.

[Ionitron]

This issue may need more information before it can be addressed. In particular, it will need a reliable Code Reproduction that demonstrates the issue.

Please see the Contributing Guide for how to create a Code Reproduction.

Thanks!
Ionitron 💙

[amoscardino]

Apparently this is not a bug but a (really) bad error message from the API I'm trying to interact with. Closing now.

[ionitron-bot]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Capacitor, please create a new issue and ensure the template is fully filled out.