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Needs to know why firefox did not send a request for appcache manifest file declared in the <html manifest="url"> and how to fix it?

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I created an HTML5 appcache app as follow:

Upon onload() event, I made several AJAX calls (POST) to the servers to load the data for the first time and they all done via HTTPS. I've inspected the servers' access log and I did not see the request for url.manifest and the loading of the appcache fails with an error (no details provided). Chrome is working fine with current setup and here is the content of my manifest: CACHE MANIFEST CACHE: /images/flower.gif

I created an HTML5 appcache app as follow: <!DOCTYPE html> <html manifest="url.manifest"> <head> </head> <body> </body> Upon onload() event, I made several AJAX calls (POST) to the servers to load the data for the first time and they all done via HTTPS. I've inspected the servers' access log and I did not see the request for url.manifest and the loading of the appcache fails with an error (no details provided). Chrome is working fine with current setup and here is the content of my manifest: CACHE MANIFEST CACHE: /images/flower.gif

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This forum answers many webdev questions, but I think yours calls for a higher level of expertise. You may want to try the mozillaZine Web Development board. It is an unofficial forum with separate registration.