How can I invalidate the page in the browser cache from the client side?

Question

Do I need a client (using javascript) to invalidate the page it has and essentially retrieve the new version?

I thought I could do all this with headers: Invalid cached content, If-Modified Headers?

If there is no way to update the browser in the current cached version without creating a new request (via a new URL) ... so that the same original URL request can be used to view the updated content?

Answer 1

javascript, POST GET nocache random parameter trick:

, . POST HTTP?

Answer 2

, :

location.reload(true);

""

'...?rnd=' + Math.random();

Answer 3

, . :

document.location.href = 'mypage.html?randomVar=454068934';

. javascript .

Answer 4

, URL. .. products.php, products.php? rand = 23443545. , .