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auto-refresh cached pages - how to force cache refresh

by kencalhn
2 replies
  • WEB DESIGN
    • |
hi - anyone know the best way to force an index.html page to a) check to see if any changes have been made, and if so, b) refresh/clear cache and reload ?

if and when I update a index.html page, I'd like to make the page reload/refresh cache. but I don't want to make it reload from cache if I haven't changed the page (so it's faster to reload for visitors). any easy way to make it check and if any changes, refresh/reload from cache?



thx,

k
#autorefresh #cache #cached #force #pages #refresh
  • Profile picture of the author Michael71
    You can not clear the cache from your visitors browser.

    What changes are you talking about?

    The only way I see is using AJAX
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  • Profile picture of the author SteveJohnson
    There is no reliable way to do that from a straight html page. You have to be able to send HTTP headers that tell the browser to reload the page, and that comes from a scripting language like PHP.

    Browsers are pretty smart, though - they don't just go reloading cached content forever. In practice, if you change the html content of a file, the browser will usually reload it.
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