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SecureHeaders::Configuration.default do |config|
config.cookies = {
secure: true, # mark all cookies as "Secure"
httponly: true, # mark all cookies as "HttpOnly"
samesite: {
strict: true # mark all cookies as SameSite=Strict
}
}
config.x_frame_options = "DENY"
config.x_content_type_options = "nosniff"
config.x_xss_protection = "1; mode=block"
config.x_download_options = "noopen"
config.x_permitted_cross_domain_policies = "none"
config.referrer_policy = "origin-when-cross-origin"
config.csp = {
# "meta" values. these will shaped the header, but the values are not included in the header.
report_only: true, # default: false
preserve_schemes: true, # default: false. Schemes are removed from host sources to save bytes and discourage mixed content.
# directive values: these values will directly translate into source directives
default_src: %w('none'),
frame_src: %w('self'),
connect_src: %w('self'),
font_src: %w('self'),
img_src: %w('self' www.gravatar.com secure.gravatar.com),
media_src: %w('none'),
object_src: %w('none'),
script_src: %w('unsafe-inline' 'unsafe-eval' 'self' maxcdn.bootstrapcdn.com),
style_src: %w('unsafe-inline' 'self'),
base_uri: %w('self'),
child_src: %w('self'),
form_action: %w('self'),
frame_ancestors: %w('none'),
block_all_mixed_content: true, # see http://www.w3.org/TR/mixed-content/
upgrade_insecure_requests: true, # see https://www.w3.org/TR/upgrade-insecure-requests/
report_uri: %w('')
}
end
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