UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.72 Safari/537.36

Steps to reproduce the problem:
1. Open a website which has service worker and a iframe with a website which also has a service worker
2. Open developer tools -> Application -> Cache Storage
3. You only see the main websites cache

What is the expected behavior?
See all Cache Storage from all sw accross domains for current website

What went wrong?
I guess it's currently filtering for the domain which is partly correct. 

Did this work before? N/A 

Chrome version: 69.0.3497.72  Channel: beta
OS Version: 10.0
Flash Version: 

We as a company develop largely in form of iframes (we call them tapps) as our base page just serves the framework. For now it's not possible to debug our service workers within chrome. In Firefox it's kinda working but also not perfectly.