[Seaside] Using multipart

[Annick Fron]

Hi,

	I have a big data (typically a canvas content), so when I use

	html input onChange: (html jQuery callback: [:v | self drawing: v] value: (html jQuery id: ‘mycanvas’))

	I get an error on request size.

	How can I use multipart request with ajax ?

	Best regards

	Annick