Can I clear a webapp in Chrome?
I've written a webapp that has a manifest that includes all the javascript and images that it requires. Unfortunately, even when I change the manifest file, it doesn't seem to reload the javascript.
Is there a way to delete the webapp completely from Chrome? Clearing the browser cache doesn't seem to work.
I'm running Chrome 5.0.375.55 on a Mac.
Any help very gratefully received.
Adding a get parameter like ?foo=12345 will treat your file as a different one and therefore recache it, but NOT clear any cache for the existing file.
Type:
chrome://appcache-internals/
and you'll get Lucky :)
Is it cached server side as well? Try adding a get parameter like ?foo=12345 to the url and see if you get the updated file.
Apple has some really good documentation on this, it is a bit tricky to get going but it does make the whole manifest process way more transparent. In addition, I find Safari (esp. Mobile Safari) shows these event responses more consistently than Firefox; not sure about Chrome though it should be pretty close to Safari.
The root of your question though:
- Empty the manifest or add/remove a file to the manifest
- load the app
- re-add the manifest
- Re-load app. This is dirty way but I recommend taking the time to read though and implement the JS and so you can see for sure the manifest is getting updated.
Google has a good post here.
Basically you can build a series of if else tests with the window.applicationCache.status for a clear look at what the system is doing.
From Apple:
For example, you get the DOMApplicationCache object as follows:
cache = window.applicationCache;
You can check the status of the application cache as follows:
if (window.applicationCache.status == window.applicationCache.UPDATEREADY)...
If the application cache is in the UPDATEREADY state, then you can update it by sending it the update() message as follows:
window.applicationCache.update();
If the update is successful, swap the old and new caches as follows:
window.applicationCache.swapCache();