Updated google chrome and lost all my progress :( not sure if I saved and updating got rid of it or I just never saved. I'd feel really silly if it's the latter.
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I'm sorry. :( I suppose it's possible that the cookies were erased with the update. But I've heard that itch.io changed hosting platform for html games so it could be that all saves for everyone were deleted, I can't say for sure. Or your browser erases cookies regularly, which could be changed in your settings, potentially.