I'm curious how to update the game using Browser, there are two events are called "Is Downloading Update" and "On Updated", but i don't see an action "Download Update"
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It's described in more detail in the offline games in Construct 2 tutorial. You simply reload the page to "install" the update.
I re-uploaded the updated .appcache and game data, then i reloaded the page... nothing happens, so i did it like 8 times.
Bump
You can't reload too quickly or the browser won't have finished downloading the update. Use Chrome and watch the console and it reports its progress. What does the Chrome console say?
Document was loaded from Application Cache with manifest xxxx.com/xxxx/offline.appcache
Application Cache Checking event
Application Cache Error event: Manifest fetch failed (401) xxxx.com/xxxx/offline.appcache
Ah, it seems an error
Check your server has the right MIME types set up as described in that tutorial.
Rare, it worked now... i didn't fix it, i had no idea how it happen