Add missing property to node object HTTPRequest

Also add tests for broken headers

packages/node_modules/@node-red/nodes/core/network/21-httprequest.js

@@ -86,6 +86,7 @@ in your Node-RED user directory (${RED.settings.userDir}).
         if (n.paytoqs === true || n.paytoqs === "query") { paytoqs = true; }
         else if (n.paytoqs === "body") { paytobody = true; }
 
+        node.insecureHTTPParser = n.insecureHTTPParser
 
         var prox, noprox;
         if (process.env.http_proxy) { prox = process.env.http_proxy; }