class Marten::Middleware::XFrameOptions


Sets the X-Frame-Options header in the response if it wasn't already set.

When this middleware is used, a X-Frame-Options header will be inserted into the HTTP response. The default value for this header (configurable in the x_frame_options setting) is "DENY", which means that the response cannot be displayed in a frame. This allows to prevent click-jacking attacks, by ensuring that the web app cannot be embedded into other sites.

On the other hand, if the x_frame_options is set to "SAMEORIGIN" the page can be displayed in a frame if the site including is the same as the one serving the page.

Defined in:


Instance Method Summary

Instance methods inherited from class Marten::Middleware

call(request : Marten::HTTP::Request, get_response : Proc(Marten::HTTP::Response)) : Marten::HTTP::Response call, next : Nil | Middleware next, next=(next __arg0 : Nil | Middleware) next=

Instance Method Detail

def call(request : Marten::HTTP::Request, get_response : Proc(Marten::HTTP::Response)) : Marten::HTTP::Response #
Description copied from class Marten::Middleware

Calls the middleware for a given HTTP request and returns a HTTP response.

This method must be implemented by subclasses: it takes a request argument (the current HTTP request) and a get_response proc that allows to get the final response. This proc might actually call the next middleware in the chain of configured middlewares, or the final matched handler. That way, the current middleware have the ability to intercept any incoming request and the associated response, and to modify them if applicable.

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