Redirects to /?theme=dark which is an official dark theme for instagram
Đây là phiên bản của script này, nơi mã nguồn đã được cập nhật. Hiện tất cả các phiên bản.
minor change
Params should not duplicate now.
So... Code fully "rewritten". I used an entirely new approach thanks to incognico that suggested to use URLSearchParams. Now the script should work in any case given (previously it didn't work with query parameters already included in an URL, probably other cases too…).
Minor change
Fixed error involving changing background on window load
Change body background to dark if theme is not applied.
Code cleanup
