Secure Headers Middleware Not Enabled by Default

[tanto-satu]

After upgrading from version 0.9.0 to version 0.10.1, when running cargo loco middleware --config, secure_headers is disabled by default. But from the docs, it should be enabled by default.

Have been trying to add secure_headers config with enabled true, but no luck, is there any missing documentation or upgrade guide? thank you

[tanto-satu]

seems like secure_headers is not enable by default, compared to this PR #785 that state what secure_headers is enabled by default.