canvas.toDataURL is not working with IIS output caching

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Javascript

HTML5

Canvas

PhoneGap

, +

I have successfully implemented image library PhoneGap app which company users use to view our company published photos. In there I have implemented a feature, when you click an hold on the image then the image will be saved on Camara Roll of the mobile device. For implementing that I used the Phonegap plugin Canvas2ImagePlugin[^]

It was working fine. Recently, I have enabled image caching on the server (IIS 7.5 Output Cashing - added extension .png and .jpg ).

Then suddenly that feature stopped working. Further checking I have found that Canvas2Image plugin uses following method to get the image data from the URL. And after enabling Output caching, imageData is always empty.

var imageData = canvas.toDataURL().replace(/data:image\/png;base64,/,'');

Can anyone experienced this before? Can you please help me to resolve this?