hsts.md 938 B
c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: hsts Arg: Protocols: HTTPS Help: Enable HSTS with this cache file Added: 7.74.0 Category: http Multi: append See-also:
- proto Example:
- --hsts cache.txt $URL ---
--hsts
Enable HSTS for the transfer. If the filename points to an existing HSTS cache file, that is used. After a completed transfer, the cache is saved to the filename again if it has been modified.
If curl is told to use HTTP:// for a transfer involving a hostname that exists in the HSTS cache, it upgrades the transfer to use HTTPS. Each HSTS cache entry has an individual life time after which the upgrade is no longer performed.
Specify a "" filename (zero length) to avoid loading/saving and make curl just handle HSTS in memory.
If this option is used several times, curl loads contents from all the files but the last one is used for saving.