Iframe doesn't display page after refreshing the page.
STEPS TO REPRODUCE
1. Install iframe portlet. Set the source url to any page. Enable "Form" authentication.
2. Go to the page, for example /group/guest/test
3. The iframe is displayed properly
4. Reload the page
page still appears in iframe
error appears in console and page does not load.
Note: This issue only occurs on Chrome.
Latest build 7.0.x
Latest build master