Add custom headers to WebView resource requests - android

java android webkit android-webview
Ray picture Ray · Sep 30, 2011 · Viewed 122.6k times · Source

I need to add custom headers to EVERY request coming from the WebView. I know loadURL has the parameter for extraHeaders, but those are only applied to the initial request. All subsequent requests do not contain the headers. I have looked at all overrides in WebViewClient, but nothing allows for adding headers to resource requests - onLoadResource(WebView view, String url). Any help would be wonderful.

Thanks, Ray

Answer

peceps picture peceps · Nov 21, 2011

Try 

loadUrl(String url, Map<String, String> extraHeaders)

For adding headers to resources loading requests, make custom WebViewClient and override:

API 24+:
WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request)
or
WebResourceResponse shouldInterceptRequest(WebView view, String url)

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