Merge pull request #2383 from jt1796/param-fix

fix params showing as undefined

src/main/javascript/helpers/handlebars.js

@@ -43,7 +43,11 @@ Handlebars.registerHelper('renderTextParam', function(param) {
         idAtt = ' id=\'' + valueId + '\'';
     }
 
+    if (defaultValue) {
       defaultValue = sanitizeHtml(defaultValue);
+    } else {
+      defaultValue = '';
+    }
 
     if(isArray) {
         result = '<textarea class=\'body-textarea' + (param.required ? ' required' : '') + '\' name=\'' + name + '\'' + idAtt + dataVendorExtensions;

src/main/javascript/view/ParameterView.js

@@ -24,7 +24,6 @@ SwaggerUi.Views.ParameterView = Backbone.View.extend({
     var consumes = this.model.consumes || [];
     var sampleJSON, signatureView;
 
-
     if (typeof type === 'undefined') {
       if (schema.$ref) {
         var ref = schema.$ref;