Fix double click issue (#772)

Author: shishir-intelli

apigee_edge.libraries.yml

@@ -51,7 +51,7 @@ apigee_edge.status_property:
       css/apigee_edge.status_property.css: {}
 
 apigee_edge.secret:
-  version: 1.0
+  version: 1.1
   css:
     theme:
       css/apigee_edge.secret.css: {}

js/apigee_edge.secret.js

@@ -39,7 +39,7 @@
           $this.addClass(hClass);
 
           // Toggle secret.
-          $(this).find('.secret__toggle').on('click', function (event) {
+          $(this).find('.secret__toggle').once().on('click', function (event) {
             let index = $(this).closest(appElWrapper).find('.secret__toggle').index(this);
             let wrapperIndex = $wrapper.data('app-container-index');
             event.preventDefault();
@@ -57,7 +57,7 @@
 
           // Copy to clipboard.
           let $copy = $(this).find('.secret__copy');
-          $copy.find('button').on('click', function (event) {
+          $copy.find('button').once().on('click', function (event) {
             let index = $(this).closest(appElWrapper).find('.secret__copy button').index(this);
             let wrapperIndex = $wrapper.closest('fieldset').parent().find('fieldset').index($(this).closest('fieldset'));
             callEndpoint($wrapper.data('app-keys-url'), function(data) {