To delete the cache, follow these steps:
To see the changes it is necessary to clean the temporary files of your browser by following these instructions:
In Google Chrome
Open the Cleanup menu: Press the Ctrl + Shift + Delete keys (on Mac use Cmd + Shift + Delete).
Configure the time
Clean Data: Click the blue Clear Data button and recharge your page with F5.
In Firefox
Open the Cleanup menu: Press the Ctrl + Shift + Delete keys (on Mac use Cmd + Shift + Delete).
Set the Time: From the drop-down menu Time Range to Clean, select "Everything".
Select the important thing: Leave only the box that says "Cache".
Clean data: Click OK and recharge your page with F5.
Test: Incognito mode
If you want to confirm if the problem is your browser or server, open an Incognito Window (Ctrl + Shift + N).