https://www.flipkart.com/ - open in devtools responsive mode, and observe space usage in Application > Clear storage.

It goes up to 50mb, while the application is storing very little.

Video of issue: https://www.youtube.com/watch?v=IKRmRFocfCY.

This appears to be due to the storage of opaque responses, which is triggering bucketing.

Bucketing is important for JS quota APIs, but I don't think it's needed for usage reports in privileged UI, such as devtools, and the 'site info' menu (https://twitter.com/anshulix/status/942653469676015616).