hsts

chrome://net-internals/#hsts

Strict-Transport-Security: max-age=<expire-time>
Strict-Transport-Security: max-age=<expire-time>; includeSubDomains
Strict-Transport-Security: max-age=<expire-time>; preload

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https://developer.mozilla.org/zh-CN/docs/Security/HTTP_Strict_Transport_Security