@jcv,
[Update]
We have released v3.5 GA with support for CSP. Please refer to the release blog for more information.
We have just released Chart v3.5 Beta-1 with a few improvements related to CSP. Please refer to the release blog for more information. Do download the latest version from download page & let us know your feedback.
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Indranil Singh Deo
Team CanvasJS