Remove placeholder and value from DOM elem serializer

Author: benvinegar

src/utils.js

@@ -220,7 +220,7 @@ function htmlElementAsString(elem) {
             out.push('.' + classes[i]);
         }
     }
-    var attrWhitelist = ['type', 'name', 'value', 'placeholder', 'title', 'alt'];
+    var attrWhitelist = ['type', 'name', 'title', 'alt'];
     for (i = 0; i < attrWhitelist.length; i++) {
         key = attrWhitelist[i];
         attr = elem.getAttribute(key);

test/utils.test.js

@@ -188,7 +188,7 @@ describe('utils', function () {
                         placeholder: 'Enter your username'
                     }[key];
                 }
-            }), 'input#the-username.form-control[name="username"][placeholder="Enter your username"]');
+            }), 'input#the-username.form-control[name="username"]');
 
             assert.equal(htmlElementAsString({
                 tagName: 'IMG',