Fix issue with duplicate submits

client/commonFramework/show-completion.js

@@ -6,25 +6,10 @@ window.common = (function(global) {
     common = { init: [] }
   } = global;
 
-  common.showCompletion = function showCompletion() {
+  function submitChallengeHandler(e) {
-
+    e.preventDefault();
-    ga(
-      'send',
-      'event',
-      'Challenge',
-      'solved',
-      common.gaName,
-      true
-    );
 
     var solution = common.editor.getValue();
-    var didCompleteWith = $('#completed-with').val() || null;
-
-    $('#complete-courseware-dialog').modal('show');
-    $('#complete-courseware-dialog .modal-header').click();
-
-    $('#submit-challenge').click(function(e) {
-      e.preventDefault();
 
     $('#submit-challenge')
       .attr('disabled', 'true')
@@ -60,7 +45,6 @@ window.common = (function(global) {
     const data = JSON.stringify({
       id: common.challengeId,
       name: common.challengeName,
-        completedWith: didCompleteWith,
       challengeType: +common.challengeType,
       solution,
       timezone
@@ -82,7 +66,24 @@ window.common = (function(global) {
       .fail(function() {
         window.location.replace(window.location.href);
       });
-    });
+  }
+
+  common.showCompletion = function showCompletion() {
+
+    ga(
+      'send',
+      'event',
+      'Challenge',
+      'solved',
+      common.gaName,
+      true
+    );
+
+    $('#complete-courseware-dialog').modal('show');
+    $('#complete-courseware-dialog .modal-header').click();
+
+    $('#submit-challenge').off('click');
+    $('#submit-challenge').on('click', submitChallengeHandler);
   };
 
   return common;