I normally clear the cache using F12 (go into the "inspect" panel") and then click-and-hold the "refresh" button. This brings up a selection "empty cache and hard reload".
Depending on your operating system all you need to do is the following key combination
Windows -
CTRL + F5 (Hold the Ctrl key and press the F5 key)
Mac -
APPLE + R
or CMD + R
Further reading -
https://en.wikipedia.org/wiki/Wikipedia:Bypass_your_cache
