Overcoming “Display forbidden by X-Frame-Options”

问题

I\'m writing a tiny webpage whose purpose is to frame a few other pages, simply to consolidate them into a single browser window for ease of viewing. A few of the pages I\'m trying to frame forbid being framed and throw a \"Refused to display document because display forbidden by X-Frame-Options.\" error in Chrome. I understand that this is a security limitation (for good reason), and don\'t have access to change it.

Is there any alternative framing or non-framing method to display pages within a single window that won\'t get tripped up by the X-Frame-Options header?

回答1:

I had a similar issue, where I was trying to display content from our own site in an iframe (as a lightbox-style dialog with Colorbox), and where we had an server-wide "X-Frame-Options SAMEORIGIN" header on the source server preventing it from loading on our test server.

This doesn't seem to be documented anywhere, but if you can edit the pages you're trying to iframe (eg., they're your own pages), simply sending another X-Frame-Options header with any string at all disables the SAMEORIGIN or DENY commands.

eg. for PHP, putting

<?php
    header('X-Frame-Options: GOFORIT'); 
?>

at the top of your page will make browsers combine the two, which results in a header of

X-Frame-Options SAMEORIGIN, GOFORIT

...and allows you to load the page in an iframe. This seems to work when the initial SAMEORIGIN command was set at a server level, and you'd like to override it on a page-by-page case.

All the best!

回答2:

If you are getting this error for a YouTube video, rather than using the full url use the embed url from the share options. It will look like http://www.youtube.com/embed/eCfDxZxTBW4

You may also replace watch?v= with embed/ so http://www.youtube.com/watch?v=eCfDxZxTBW4 becomes http://www.youtube.com/embed/eCfDxZxTBW4

回答3:

If you are getting this error while trying to embed a Google Map in an iframe, you need to add &output=embed to the source link.

回答4:

UPDATE 2019: You can bypass X-Frame-Options in an <iframe> using just client-side JavaScript and my X-Frame-Bypass Web Component. Here is a demo: Hacker News in an X-Frame-Bypass. (Tested in Chrome & Firefox.)

回答5:

Adding a

  target='_top'

to my link in the facebook tab fixed the issue for me...

回答6:

There is a plugin for Chrome, that drops that header entry (for personal use only):

https://chrome.google.com/webstore/detail/ignore-x-frame-headers/gleekbfjekiniecknbkamfmkohkpodhe/reviews

回答7:

If you're getting this error trying to embed Vimeo content, change the src of the iframe,

from: https://vimeo.com/63534746
to: http://player.vimeo.com/video/63534746

回答8:

I had same issue when I tried embed moodle 2 in iframe, solution is Site administration ► Security ► HTTP security and check Allow frame embedding

回答9:

This is the solution guys!!

FB.Event.subscribe('edge.create', function(response) {
    window.top.location.href = 'url';
});

The only thing that worked for facebook apps!

回答10:

Solution for loading an external website into an iFrame even tough the x-frame option is set to deny on the external website.

If you want to load a other website into an iFrame and you get the Display forbidden by X-Frame-Options” error then you can actually overcome this by creating a server side proxy script.

The src attribute of the iFrame could have an url looking like this: /proxy.php?url=https://www.example.com/page&key=somekey

Then proxy.php would look something like:

if (isValidRequest()) {
   echo file_get_contents($_GET['url']);
}

function isValidRequest() {
    return $_SERVER['REQUEST_METHOD'] === 'GET' && isset($_GET['key']) && 
    $_GET['key'] === 'somekey';
}

This by passes the block, because it is just a GET request that might as wel have been a ordinary browser page visit.

Be aware: You might want to improve the security in this script. Because hackers could start loading in webpages via your proxy script.

回答11:

I tried nearly all suggestions. However, the only thing that really solved the issue was:

Create an .htaccess in the same folder where your PHP file lies.
Add this line to the htaccess:

Header always unset X-Frame-Options

Embedding the PHP by an iframe from another domain should work afterwards.

Additionally you could add in the beginning of your PHP file:

header('X-Frame-Options: ALLOW');

Which was, however, not necessary in my case.

回答12:

It appears that X-Frame-Options Allow-From https://... is depreciated and was replaced (and gets ignored) if you use Content-Security-Policy header instead.

Here is the full reference: https://content-security-policy.com/

回答13:

I had the same problem with mediawiki, this was because the server denied embedding the page into an iframe for security reasons.

I solved it writing

$wgEditPageFrameOptions = "SAMEORIGIN";

into the mediawiki php config file.

Hope it helps.

回答14:

FWIW:

We had a situation where we needed to kill our iFrame when this "breaker" code showed up. So, I used the PHP function get_headers($url); to check out the remote URL before showing it in an iFrame. For better performance, I cached the results to a file so I was not making a HTTP connection each time.

回答15:

I was using Tomcat 8.0.30, none of the suggestions worked for me. As we are looking to update the X-Frame-Options and set it to ALLOW, here is how I configured to allow embed iframes:

Navigate to Tomcat conf directory, edit the web.xml file
Add the below filter:

<filter>
            <filter-name>httpHeaderSecurity</filter-name>
            <filter-class>org.apache.catalina.filters.HttpHeaderSecurityFilter</filter-class>
                   <init-param>
                           <param-name>hstsEnabled</param-name>
                           <param-value>true</param-value>
                   </init-param>
                   <init-param>
                           <param-name>antiClickJackingEnabled</param-name>
                           <param-value>true</param-value>
                   </init-param>
                   <init-param>
                           <param-name>antiClickJackingOption</param-name>
                           <param-value>ALLOW-FROM</param-value>
                   </init-param>
            <async-supported>true</async-supported>
       </filter>

       <filter-mapping>
                   <filter-name>httpHeaderSecurity</filter-name>
                   <url-pattern>/*</url-pattern>
                   <dispatcher>REQUEST</dispatcher>
       </filter-mapping>

Restart Tomcat service
Access the resources using an iFrame.

回答16:

The only question that has a bunch of answers. WElcome to the guide i wish i had when i was scrambling for this to make it work at 10:30 at night on the deadline day... FB does some weird things with canvas apps, and well, you've been warned. If youa re still here and you have a Rails app that will appear behind a Facebook Canvas, then you will need:

Gemfile:

gem "rack-facebook-signed-request", :git => 'git://github.com/cmer/rack-facebook-signed-request.git'

config/facebook.yml

facebook:
  key: "123123123123"
  secret: "123123123123123123secret12312"

config/application.rb

config.middleware.use Rack::Facebook::SignedRequest, app_id: "123123123123", secret: "123123123123123123secret12312", inject_facebook: false

config/initializers/omniauth.rb

OmniAuth.config.logger = Rails.logger
SERVICES = YAML.load(File.open("#{::Rails.root}/config/oauth.yml").read)
Rails.application.config.middleware.use OmniAuth::Builder do
  provider :facebook, SERVICES['facebook']['key'], SERVICES['facebook']['secret'], iframe:   true
end

application_controller.rb

before_filter :add_xframe
def add_xframe
  headers['X-Frame-Options'] = 'GOFORIT'
end

You need a controller to call from Facebook's canvas settings, i used /canvas/ and made the route go the main SiteController for this app:


class SiteController < ApplicationController
  def index
    @user = User.new
  end
  def canvas
    redirect_to '/auth/failure' if request.params['error'] == 'access_denied'
    url = params['code'] ? "/auth/facebook?signed_request=#{params['signed_request']}&state=canvas" : "/login"
    redirect_to url
  end
  def login
  end
end

login.html.erb


&lt% content_for :javascript do %>
  var oauth_url = 'https://www.facebook.com/dialog/oauth/';
  oauth_url += '?client_id=471466299609256';
  oauth_url += '&redirect_uri=' + encodeURIComponent('https://apps.facebook.com/wellbeingtracker/');
  oauth_url += '&scope=email,status_update,publish_stream';
console.log(oauth_url);
  top.location.href = oauth_url;
&lt% end %>

Sources

The config i think came from omniauth's example.
The gem file (which is key!!!) came from: slideshare things i learned...
This stack question had the whole Xframe angle, so you'll get a blank space, if you don't put this header in the app controller.
And my man @rafmagana wrote this heroku guide, which now you can adopt for rails with this answer and the shoulders of giants in which you walk with.

回答17:

target='_parent'

Using Kevin Vella's idea, I tried adding that attribute to form elements made by PayPal's button generator. Worked for me so that Paypal does not open in a new browser window/tab.

回答18:

I'm not sure how relevant it is, but I built a work-around to this. On my site, I wanted to display link in a modal window that contained an iframe which loads the URL.

What I did is, I linked the click event of the link to this javascript function. All this does is make a request to a PHP file that checks the URL headers for X-FRAME-Options before deciding whether to load the URL within the modal window or to redirect.

Here's the function:

  function opentheater(link, title){
        $.get( "url_origin_helper.php?url="+encodeURIComponent(link), function( data ) {
  if(data == "ya"){
      $(".modal-title").html("<h3 style='color:480060;'>"+title+"&nbsp;&nbsp;&nbsp;<small>"+link+"</small></h3>");
        $("#linkcontent").attr("src", link);
        $("#myModal").modal("show");
  }
  else{
      window.location.href = link;
      //alert(data);
  }
});


        }

Here's the PHP file code that checks for it:

<?php
$url = rawurldecode($_REQUEST['url']);
$header = get_headers($url, 1);
if(array_key_exists("X-Frame-Options", $header)){
    echo "nein";
}
else{
    echo "ya";
}


?>

Hope this helps.

回答19:

I came across this issue when running a wordpress web site. I tried all sorts of things to fix it and wasn't sure how, ultimately the issue was because I was using DNS forwarding with masking, and the links to external sites were not being addressed properly. i.e. my site was hosted at http://123.456.789/index.html but was masked to run at http://somewebSite.com/index.html. When i entered http://123.456.789/index.html in the browser clicking on those same links resulted in no X-frame-origins issues in the JS console, but running http://somewebSite.com/index.html did. In order to properly mask you must add your host's DNS name servers to your domain service, i.e. godaddy.com should have name servers of example, ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com, if you were using digitalocean.com as your hosting service.

回答20:

It's surprising that no one here has ever mentioned Apache server's settings (*.conf files) or .htaccess file itself as being a cause of this error. Search through your .htaccess or Apache configuration files, making sure that you don't have the following set to DENY:

Header always set X-Frame-Options DENY

Changing it to SAMEORIGIN, makes things work as expected:

Header always set X-Frame-Options SAMEORIGIN

回答21:

The only real answer, if you don't control the headers on your source you want in your iframe, is to proxy it. Have a server act as a client, receive the source, strip the problematic headers, add CORS if needed, and then ping your own server.

There is one other answer explaining how to write such a proxy. It isn't difficult, but I was sure someone had to have done this before. It was just difficult to find it, for some reason.

I finally did find some sources:

https://github.com/Rob--W/cors-anywhere/#documentation

^ preferred. If you need rare usage, I think you can just use his heroku app. Otherwise, it's code to run it yourself on your own server. Note sure what the limits are.

whateverorigin.org

^ second choice, but quite old. supposedly newer choice in python: https://github.com/Eiledon/alloworigin

then there's the third choice:

http://anyorigin.com/

Which seems to allow a little free usage, but will put you on a public shame list if you don't pay and use some unspecified amount, which you can only be removed from if you pay the fee...

回答22:

Not mentioned but can help in some instances:

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
    if (xhr.readyState !== 4) return;
    if (xhr.status === 200) {
        var doc = iframe.contentWindow.document;
        doc.open();
        doc.write(xhr.responseText);
        doc.close();
    }
}
xhr.open('GET', url, true);
xhr.send(null);

回答23:

Use this line given below instead of header() function.

echo "<script>window.top.location = 'https://apps.facebook.com/yourappnamespace/';</script>";

回答24:

i had this problem, and resolved it editing httd.conf

<IfModule headers_module>
    <IfVersion >= 2.4.7 >
        Header always setifempty X-Frame-Options GOFORIT
    </IfVersion>
    <IfVersion < 2.4.7 >
        Header always merge X-Frame-Options GOFORIT
    </IfVersion>
</IfModule>

i changed SAMEORIGIN to GOFORIT and restarted server

回答25:

Edit .htaccess if you want to remove X-Frame-Options from an entire directory.

And add the line: Header always unset X-Frame-Options

[contents from: Overcoming "Display forbidden by X-Frame-Options"

回答26:

Try this thing, i dont think anyone suggested this in the Topic, this will resolve like 70% of your issue, for some other pages, you have to scrap, i have the full solution but not for public,

ADD below to your iframe

sandbox="allow-same-origin allow-scripts allow-popups allow-forms"

来源：https://stackoverflow.com/questions/6666423/overcoming-display-forbidden-by-x-frame-options

标签

iframe

frames

x-frame-options