Why caching an application prevent Cors request?
I have an example, two html page exactly Identical except the second line :
index.html link
<!DOCTYPE html>
<html manifest="main.appcache">
index2.html link
<!DOCTYPE html>
<html>
Why the one without manifest is working fine and the one with manifest works only the first time and stop working when the application is cached? (press F5 several times)
I tested with Firefox, Chrome and IE.
According to this article
NETWORK: Files listed in this section may come from the network if they aren't in the cache, otherwise the network isn't used, even if the user is online. You can white-list specific URLs here, or simply "*", which allows all URLs. Most sites need "*".
So behaviour you've described is appropriate, because your appcache manifest doesn't contain NETWORK section.
Update: request that fails - isn't CORS - because domain, protocol and port are the same.