Close the browser and open again, sometimes clean, but what is more accurate is to close it delete the cache folder of it, then open again. Just deleting the folder and updating does not work, it creates a new cache equal to the page that was loaded before.
Does anyone know how to disable the cache of scripts loaded in Opera 12?
Press Ctrl + F12 and you will get a menu of Preferências , navigate to the Avançado tab, and in the left menu select Histórico you will see a Esvaziar Agora button click on it and you will have cleared your cache.
See in detail the image below:
Note that you have some Cache options, if you want to modify, in your case it is recommended to check the Esvaziar na saída box and select Nenhum in Cache de memória and Cache de disco .
Note: I think it can also help you, if you go in the left side menu at Armazenamento and there you will have a Combo named Usar cache de aplicativos put to Não .
Try this on the head of your page to not cache:
<meta http-equiv="cache-control" content="no-store, no-cache, must-revalidate, post-check=0, pre-check=0">
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="expires" content ="-1">
Try this javascript in the console (CTRL + SHIFT + J) to reload the page and redo the cache:
location.reload(true);