During an application cache update, Chrome logs :
Application Cache Progress event (1 of 2) https://example.com/file1.css
Application Cache Progress event (2 of 2) https://example.com/file2.js
Sometimes the URL is underlined (event 3/4 in this example), sometimes not. Why ?
It seems that underlined resources will be opened in developer tools when clicked on. Those that are not underlined, are still hyper-links but Chrome will launch them in a separate tab.
What I don't understand is why Chrome sometimes decides to treat resources like this and sometimes not. Even loading the same page several times changes the resources that are underlined occasionally.
Very odd. At a guess I'd say a bug.