I wanted to send direct from WebViev Button to another Phone with HTTPServer, from B4A it is clear.
I wanted to avoid the Javascript Interface:
JavaScript:
<script> // in WebView javascript
function StrgToB4A() {
var value = document.getElementById("inputField").value;
// call B4A "Sub SendToHttpServer" from WebView javascript , "Android" is the Interface Name
Android.CallSub("SendToHttpServer", true, "value");
}