Ruby on rails 4 app does not work in iframe

问题:

How can I embed my rails app into another website via iframe?

It works nicely with RoR 3, but not with RoR 4:

I tried to use verify_authenticity_token and protect_from_forgery options in my controller... seems it's something else (but I'm not sure).

upd. Example: http://jsfiddle.net/zP329/

回答1:

This has to do with Rails 4 enabling additional security protocols by default: http://weblog.rubyonrails.org/2013/2/25/Rails-4-0-beta1/

The setting that breaks iFrames on remote sites is X-Frame-Options. By default, this is set to SAMEORIGIN, which prevents the content from being loading cross domain:

config.action_dispatch.default_headers = {     'X-Frame-Options' => 'SAMEORIGIN' } 

You can read about the new default headers here: http://edgeguides.rubyonrails.org/security.html#default-headers

In order to allow the iFrame to work cross domain, you can change the default headers to allow X-Frame across domain.

config.action_dispatch.default_headers = {     'X-Frame-Options' => 'ALLOWALL' } 

回答2:

Rails 4 added a default X-Frame-Options HTTP header value of SAMEORIGIN. This is good for security, but when you do want your action to be called in an iframe, you can do this:

---

To Allow all Origins:

class MyController 

To Allow a Specific Origin:

class MyController 

---

Use :after_filter

When you need to use more than one of your action in an iframe, it's a good idea to make a method and call it with :after_filter:

class ApplicationController 

Use it in your controllers like this:

class MyController 

---

Via: Rails 4: let specific actions be embedded as iframes

文章来源: Ruby on rails 4 app does not work in iframe