Bug: A security error occurred and caused a crash when used in a different source iframe

[wang2498]

https://github.com/casesandberg/react-color/blob/bc9a0e1dc5d11b06c511a8e02a95bd85c7129f4b/src/components/common/Saturation.js#L23

The lack of strict access to parent here leads to security errors Please fix it in time