UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36

Steps to reproduce the problem:
(1) open a tab and load https://cloud3squared.com/files/sw-stackoverflow-demo/index.html
(2) hit F5 twice to load all resources fully
(3) F12 to open devtools
(4) look in Application tab
(5) then in Cache Storage section on the left
(6) right-click on Cache Storage and "Refresh Caches" to ensure you're showing latest info
(7) open drop down under Cache Storage, click onto the two cache names in turn, and look in the table to the right

What is the expected behavior?
Content-Length and Time Cached values should be populated with correct information for all entries in the table

What went wrong?
Content-Length and Time Cached values are NOT populated with correct information for all entries in the table.

But it's inconsistent... run the same repro with another demo (https://mdn.github.io/sw-test/) and all sizes and dates are properly filled in.

And for https://www.chromestatus.com/features the table is partially OK, partially not.

See attached screenshots.

Did this work before? N/A 

Chrome version: 63.0.3239.108  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version:
 

Deleted: my-sw-cache-table.jpg 42.7 KB

	my-sw-cache-table.jpg 42.7 KB View Download

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	starwars-sw-cache-table.jpg 46.7 KB View Download

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	chromestatus-sw-cache-table.jpg 48.3 KB View Download