Missing changes required to make new UI work (#2793)

* Getting rid of old dapps

* Updating proxypac and allowing home.parity on signer

* CORS support for API

* Fixing CORS - origin is sent with protocol

* Fixing signer with proxy

* Fixing grumbles

* Fix expect msg [ci:skip]

dapps/src/tests/validation.rs

@@ -45,7 +45,7 @@ fn should_allow_valid_host() {
 	// when
 	let response = request(server,
 		"\
-			GET /home/ HTTP/1.1\r\n\
+			GET /ui/ HTTP/1.1\r\n\
 			Host: localhost:8080\r\n\
 			Connection: close\r\n\
 			\r\n\
@@ -66,7 +66,7 @@ fn should_serve_dapps_domains() {
 	let response = request(server,
 		"\
 			GET / HTTP/1.1\r\n\
-			Host: home.parity\r\n\
+			Host: ui.parity\r\n\
 			Connection: close\r\n\
 			\r\n\
 			{}
@@ -98,3 +98,30 @@ fn should_allow_parity_utils_even_on_invalid_domain() {
 	assert_eq!(response.status, "HTTP/1.1 200 OK".to_owned());
 }
 
+#[test]
+fn should_not_return_cors_headers_for_rpc() {
+	// given
+	let server = serve_hosts(Some(vec!["localhost:8080".into()]));
+
+	// when
+	let response = request(server,
+		"\
+			POST /rpc HTTP/1.1\r\n\
+			Host: localhost:8080\r\n\
+			Origin: null\r\n\
+			Content-Type: application/json\r\n\
+			Connection: close\r\n\
+			\r\n\
+			{}
+		"
+	);
+
+	// then
+	assert_eq!(response.status, "HTTP/1.1 200 OK".to_owned());
+	assert!(
+		!response.headers_raw.contains("Access-Control-Allow-Origin"),
+		"CORS headers were not expected: {:?}",
+		response.headers
+	);
+}
+