JS errors are thrown after navigating to a portlet, clicking the add button, and navigating back to the same portlet

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X EE, Master
• Fix Version/s: 7.0.0 DXP FP28, 7.0.X EE, 7.0.4 CE GA5, 7.1.X, Master
• Component/s: ~ [Archived] Frontend Infrastructure
• Labels:
  • QA-AUTOMATION
  • liferay-digital-enterprise-70-sp5
  • liferay-fixpack-de-28-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/50453
• QA Test Name:
  • CPPagetemplates#LocalizeDefaultPageTemplates
  • CPUsersandorganizations#AddUsers
  • SiteandPagetemplatesUsecase#SiteAdminCannotDeletePagesThatWereCreatedBySiteTemplates
  • SitesadministrationUsecase#ReturnWrongLayoutForSignedInUserWithVirtualHostsConfigured
  • UsersandorganizationsUsecase#AddUserSpecialCharacters
  • WebcontentUsecase#ExpireMultipleWebContent
• QA Test Score: 22

Steps to reproduce:

1. Add a user
2. Click the user name to view it
3. Click the Product Menu of Users and Organizations

Expected result:
No error and go to the Users and Organizations page.

Actual result:
Show like the image, and some script errors throw on browser:

     [exec]     JAVA_SCRIPT_ERROR: TypeError: this.get(...) is null [http://localhost:8080/combo/?browserId=firefox&mini
fierType=&languageId=en_US&b=7010&t=1495780650206&/o/frontend-js-web/aui/model/model-min.js&/o/frontend-js-web/aui/model
-list/model-list-min.js&/o/frontend-js-web/aui/datatable-core/datatable-core-min.js&/o/frontend-js-web/aui/view/view-min
.js&/o/frontend-js-web/aui/datatable-head/datatable-head-min.js&/o/frontend-js-web/aui/datatable-body/datatable-body-min
.js&/o/frontend-js-web/aui/datatable-table/datatable-table-min.js&/o/frontend-js-web/aui/datatable-base/datatable-base-m
in.js&/o/frontend-js-web/aui/aui-datatable-body/aui-datatable-body-min.js&/o/frontend-js-web/aui/aui-datatable-core/aui-
datatable-core-min.js&/o/frontend-js-web/liferay/search_container.js&/o/frontend-taglib/management_bar/js/management_bar
.js&/o/frontend-js-web/liferay/search_container_select.js:26]
     [exec]     JAVA_SCRIPT_ERROR: TypeError: e.one(...) is null [http://localhost:8080/combo/?browserId=firefox&minifie
rType=&languageId=en_US&b=7010&t=1495780650206&/o/frontend-js-web/aui/dd-ddm-drop/dd-ddm-drop-min.js&/o/frontend-js-web/
aui/dd-drop/dd-drop-min.js&/o/frontend-js-web/aui/dd-drop-plugin/dd-drop-plugin-min.js&/o/frontend-js-web/aui/dd-delegat
e/dd-delegate-min.js&/o/frontend-js-web/aui/resize-base/resize-base-min.js&/o/frontend-js-web/aui/resize-plugin/resize-p
lugin-min.js&/o/frontend-js-web/aui/aui-modal/aui-modal-min.js&/o/frontend-js-web/aui/aui-modal-resize/aui-modal-resize-
min.js&/o/frontend-js-web/liferay/widget_zindex.js&/o/frontend-js-web/liferay/util_window.js&/o/frontend-js-web/liferay/
url_preview.js&/o/frontend-js-web/aui/dd-proxy/dd-proxy-min.js&/o/frontend-js-web/aui/aui-tree-data/aui-tree-data-min.js
&/o/frontend-js-web/aui/aui-tree-io/aui-tree-io-min.js&/o/frontend-js-web/aui/aui-tree-paginator/aui-tree-paginator-min.
js&/o/frontend-js-web/aui/aui-tree-node/aui-tree-node-min.js&/o/frontend-js-web/aui/aui-tree-view/aui-tree-view-min.js:1
5]

Note: This issue can not reproduce everytime, you can clear the cache of your browser to improve the possibility.