configure your own domain name www.rychou.xyz in github pages, and do not use the Enforce HTTPS option. Visiting http://www.rychou.xyz at this point will automatically switch to using https.

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after searching around google, I didn"t find a solution. I wanted to know how to avoid using https automatically.
The < H1 > problem has been solved, it"s the browser cache problem, 233333, < / H1 >