Yes, sometimes you need to refresh the browser cache, for some reason or other the browser will not update its cache with your new changes. Try the folllowing (see wiki):
Google Chrome
On Windows and Linux, use one of the following:
- Hold the Ctrl key and press the F5 key.
- Hold the ⇧ Shift key and press the F5 key.
On macOS:
- Hold both the ⌘ Cmd and ⇧ Shift keys and press the R key.
Microsoft Edge
On Windows:
- Hold the Ctrl key and press the F5 key.[1]
Internet Explorer
Use one of the following:
- Hold the Ctrl key and press the F5 key.
Firefox and other related browsers
These instructions work for Firefox, SeaMonkey, and other related browsers.
On Windows and Linux, use one of the following:
- Hold both the Ctrl and ⇧ Shift keys and then press R.
On macOS, use one of the following:
- Hold both the ⌘ Cmd and ⇧ Shift keys and then press R.