Weinre android js script injection without having to change the physical html

gistfile1.java

webView.loadUrl(
        "javascript:"+
        "var script = document.createElement('script'); "+
        "script.type = 'text/javascript'; "+
        "script.src = 'http://XXXXXXXXX:XXXX/target/target-script-min.js#anonymous'; "+
        "document.getElementsByTagName('head')[0].appendChild(script); "
);