1 files changed, 21 insertions, 15 deletions
diff --git a/pinyweb/cgi-bin/checkconstraint.cgi b/pinyweb/cgi-bin/checkconstraint.cgi
index 8db0903..757bcaa 100755
--- a/pinyweb/cgi-bin/checkconstraint.cgi
+++ b/pinyweb/cgi-bin/checkconstraint.cgi
@@ -11,29 +11,35 @@ use Piny;
 
 my $q = CGI->new( );
 
-my $type = $q->param( 't' );
-my $value = $q->param( 'v' );
-
-if ( not defined $type or not defined $value ) {
-  print "Status: 400 Bad Request\nContent-type: application/json\n\n";
-  print encode_json( { "ok" => JSON::false, "msg" => "Unable to validate due to client-side error, please reload this page. Required parameter missing." } );
+if ( $q->request_method( ) eq "OPTIONS" ) {
+  print "Status: 204 No Content\nAccess-Control-Allow-Origin: *\n\n";
 } else {
 
-  my $constraint = find_type_constraint( $type );
+  my $type = $q->param( 't' );
+  my $value = $q->param( 'v' );
 
-  if ( not defined $constraint ) {
+  if ( not defined $type or not defined $value ) {
     print "Status: 400 Bad Request\nContent-type: application/json\n\n";
-    print encode_json( { "ok" => JSON::false, "msg" => "Unable to validate due to client-side error, please reload this page. Invalid constraint name." } );
+    print encode_json( { "ok" => JSON::false, "msg" => "Unable to validate due to client-side error, please reload this page. Required parameter missing." } );
   } else {
 
-    print "Status: 200 OK\nContent-type: application/json\n\n";
-
-    my $error = $constraint->validate( $value );
+    my $constraint = find_type_constraint( $type );
 
-    if ( defined $error ) {
-      print encode_json( { "ok" => JSON::false, "msg" => $error } );
+    if ( not defined $constraint ) {
+      print "Status: 400 Bad Request\nContent-type: application/json\n\n";
+      print encode_json( { "ok" => JSON::false, "msg" => "Unable to validate due to client-side error, please reload this page. Invalid constraint name." } );
     } else {
-      print encode_json( { "ok" => JSON::true } );
+
+      print "Status: 200 OK\nContent-type: application/json\n\n";
+
+      my $error = $constraint->validate( $value );
+
+      if ( defined $error ) {
+        print encode_json( { "ok" => JSON::false, "msg" => $error } );
+      } else {
+        print encode_json( { "ok" => JSON::true } );
+      };
+
     };
 
   };