UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36

Steps to reproduce the problem:
1. Dynamically create Iframe with document.createElement
2. Add iframe to document with document.body.appendChild
3. Use top window form to post parameters into iframe using iframe name as form target

What is the expected behavior?
(index) entry under the iframe tree structure of the devtools source tree

What went wrong?
(index) is missing

Did this work before? No 

Chrome version: 52.0.2743.116  Channel: stable
OS Version: Fedora 24
Flash Version: Shockwave Flash 22.0 r0

Under the console tab it shows the iframe list with (about:blank) added. Is this because the src attribute was never set?