grand CORS for json files

source/net/yacy/http/servlets/YaCyDefaultServlet.java

@@ -842,6 +842,10 @@ public class YaCyDefaultServlet extends HttpServlet  {
             response.setDateHeader(HeaderFramework.EXPIRES, now); // expires now
         }
 
+        if (target.endsWith(".json")) {
+            response.setHeader(HeaderFramework.CORS_ALLOW_ORIGIN, "*");
+        }
+
         if ((targetClass != null)) {
             serverObjects args = new serverObjects();
             Enumeration<String> argNames = request.getParameterNames(); // on ssi jetty dispatcher merged local ssi query parameters

source/net/yacy/server/http/HTTPDProxyHandler.java

@@ -668,7 +668,7 @@ public final class HTTPDProxyHandler {
                 cachedResponseHeader.put(HeaderFramework.CONTENT_LENGTH, Integer.toString(0));
 
                 // send cached header with replaced date and added length
-                HTTPDemon.sendRespondHeader(conProp,respond,clienthttpVer,304,cachedResponseHeader);
+                HTTPDemon.sendRespondHeader(conProp,respond,clienthttpVer,304,null,cachedResponseHeader);
                 //respondHeader(respond, "304 OK", cachedResponseHeader); // respond with 'not modified'
             } else {
                 // unconditional request: send content of cache
@@ -679,7 +679,7 @@ public final class HTTPDProxyHandler {
                 cachedResponseHeader.put(HeaderFramework.CONTENT_LENGTH, Long.toString(cacheEntry.length));
 
                 // send cached header with replaced date and added length
-                HTTPDemon.sendRespondHeader(conProp,respond,clienthttpVer,203,cachedResponseHeader);
+                HTTPDemon.sendRespondHeader(conProp,respond,clienthttpVer,203,null,cachedResponseHeader);
                 //respondHeader(respond, "203 OK", cachedResponseHeader); // respond with 'non-authoritative'
 
                 // send also the complete body now from the cache

source/net/yacy/server/http/HTTPDemon.java

@@ -215,16 +215,6 @@ public final class HTTPDemon {
         }
     }
 
-    static final void sendRespondHeader(
-            final HashMap<String, Object> conProp,
-            final OutputStream respond,
-            final String httpVersion,
-            final int httpStatusCode,
-            final ResponseHeader header
-    ) throws IOException {
-        sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,null,header);
-    }
-
     static final void sendRespondHeader(
             final HashMap<String, Object> conProp,
             final OutputStream respond,