javascript - How can i cache large image data using HTML5 -

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i developing asp.net webapi utilizing features of html5. need cache image data improving performance. image data returned in json format web service hosted in iis in separate machine. when click on thumbnail of image in ui, call webservice seriesid input. webservice return imageid , pixel data stream. pixel data stream binding canvas. need cache image shown in canvas. image of around 70mb in size. feature of html5 can use caching huge amount of image data?

i'd give manifest go: http://www.w3schools.com/html/html5_app_cache.asp

worked me smaller image sizes.


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