Why doesn't Google Chrome developer tools always show the location of the style in the css file of the selected element?

Question

Google Chrome

Google Chrome 40.0.2188.2 dev-m (64-bit) does not always show the file and line number:

but on some sites it shows, I haven’t seen this before, what could it be?

Answer 1

To be honest, lately chrome has just started to forget the css styles I changed, so I changed the font, switched to another element, and then returned and everything is the value that is in the CSS file and not what I changed. People don’t know why? sorry for off. topic.

Answer 2

Faced the same problem a few days ago and to this day, everything is ok at work, I can’t work at home. I noticed that the same file locally does not show anything, everything is fine with the Internet. The maximum that was achieved locally is the running file itself. I could not find solutions on the Internet, technical support is silent, reinstalling chrome did not help.
I would be grateful if someone writes a solution. There is no desire to switch to another browser.
windows 8, chrome version 38.0.2125.104m

Answer 3

It's all about the line feed of the css file, it should be CRLF, then Crome will indicate the number.

Answer 4

Look for the problem in CSS.
In my case, the problem was the empty value of url() background-image.