No respect for "cache" option

[DimitryDushkin]

There is no any code that handles "cache" option https://developer.mozilla.org/en-US/docs/Web/API/Request/cache

On IE11 this causes similar request always fetching from cache.

[mislav]

You're right. It's due technical limitations. See explanation here #438 (comment)

[pawelrychlik]

This should be written in bold in README/Caveats section imho.

[mislav]

It's listed in Caveats of the web site.

[MihaMarkic]

It should be listed on top of page with big red font and blinking :)