Comments on asymptotic tight bound: Use Cases for DataCache

Dynamic thumbnails today are usually downloaded a ...

2009-12-23T18:21:53.401-08:00

Dynamic thumbnails today are usually downloaded a image sprites to save the number of HTTP connections made to the server.
In our given context, to show (and cache)dynamic image data, AJAX requests are made, with responses returning data URIs of the images. The returned result can be stored and displayed with AJAX.

For really large images (and for IE that does not support data URIs), the base64 image data can be sent and drawn on canvas with Javascript. Improvements like JPEG decoders written in Javascript are also an option when encoding is required.

@Parashuram How would you show a thumbnail of an ...

2009-12-23T17:26:04.204-08:00

@Parashuram

How would you show a thumbnail of an image that you may have downloaded as the attachment for an email? That would require you to use an <img> tag. Not everything can be put through Ajax requests.

IMHO, the data URLs that would have to be cached w...

2009-12-23T07:56:08.946-08:00

IMHO, the data URLs that would have to be cached would usually be requested using AJAX. Hence, this functionality can be achieved with a combination of AppCache and WebDatabase specifications.
Since we really dont care about what type of data the server returns, I am not sure if there is a case of interoperability here.