localStorage access is unguarded

[1j01]

Even with isSaveState: false, it gets "DOMException: Failed to read the 'localStorage' property from 'Window': Access is denied for this document" when storage is disabled in the browser settings.

All usage of localStorage should be wrapped in a try-catch.

[Sandstedt]

Are you trying to run this dev tool in a headless browser or in node? This tool is not suppose to be shipped into production, but just be a browser based tool for you to edit curves in. So no need to run this when not developing in client side.

[1j01]

I just thought I would report this issue since this demo doesn't work for me. I can pan the view, but no curve is displayed:

My actual use case is a little outside the library's immediate scope, and I expect to fork it to achieve what I want (although the API could be generalized to support this). Rather than doing animation, I want to control a mouse acceleration curve for a head tracking system. So instead of time, the input axis is head speed, and then the output axis is pointer speed.
I'd like to present a simpler UI to users, ultimately, but first I need to understand the range of curves that works well.
And I may leave a full curve editor in as an advanced option, if it's not too much trouble to maintain. We'll see.

And I could roll my own curve editor but this one looks very nice and polished, and even fits the color scheme of my app :)