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copied!<p>The only solution I can think of is manually compressing the data (rather than leaving it to the server and browser), as that allows you to use the normal progress bar and should still give you considerable gains over the uncompressed version. If for example the system only is required to work in latest generation web browsers you can for example zip it on the server side (whatever language you use, I am sure there is a zip function or library) and on the client side you can use <a href="http://gildas-lormeau.github.com/zip.js/" rel="nofollow noreferrer">zip.js</a>. If more browser support is required you can check <a href="https://stackoverflow.com/questions/294297/javascript-implementation-of-gzip">this SO answer</a> for a number of compression and decompression functions (just choose one which is supported in the server side language you're using). Overall this should be reasonably simple to implement, although it will perform worse (though still good probably) than native compression/decompression. (Btw, after giving it a bit more thought it could in theory perform even better than the native version in case you would choose a compression algorithm which fits the type of data you're using and the data is sufficiently big)</p> <p>Another option would be to use a websocket and load the data in parts where you parse/handle every part at the same time it's loaded (you don't need websockets for that, but doing 10's of http requests after eachother can be quite a hassle). Whether this is possible depends on the specific scenario, but to me it sounds like report data is the kind of data that can be loaded in parts and isn't required to be first fully downloaded.</p>

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