add Access-Control-Allow-Origin header to all link in webview

Hello Friends I have android webview app. I want you to add "Access-Control-Allow-Origin: *" header value to all links which load. but point is you should add this to header with android java code. i cant add this header to original source. I am php programmer. I think you will write one line but i dont know how. and I need this now. you can do we can finish this job now.