Support for Adding Custom Headers in WebGL

[dilanMatific]

Hi, thank you for the great unity-webview plugin!

I noticed that AddCustomHeader is not supported on WebGL (//TODO: UNSUPPORTED).
Are there any plans to support custom headers on WebGL in future versions?
If not, is there a recommended alternative approach to achieve this?

Thanks in advance!

[KojiNakamaru]

Modern browsers support Service Workers, which allow us to intercept "fetch" operations. This can be utilized to recreate requests with custom headers based on the original, similar to how it is handled in native Android and iOS implementations.

However, implementing custom headers can be tricky and may not work reliably in all edge cases. If you have control over the content or the server displayed in your WebViews, it is much simpler to use cookies or query parameters instead.

[dilanMatific]

Thanks for the advice! I’ll go with query parameters since that seems simpler and more reliable.