What I want to do is open an iframe, pointing to another website, and then submit a form on that website.
This is obviously cross-origin, so Chrome (and I assume other browsers) doesn't allow me to do stuff to the contents of the iframe, once it's loaded.
So I've tried doing it in a Chrome extension. I'm getting a similar error:
Uncaught SecurityError: Blocked a frame with origin "chrome-extension://amnacjaocbabmgfjcbmgbhikfedaanmo" from accessing a frame with origin "http://www.example.com". The frame requesting access has a protocol of "chrome-extension", the frame being accessed has a protocol of "http". Protocols must match.
Any suggestions on how to make this work? I can post more details on my current method, if necessary. But, I'm open to other suggestions (e.g. opening a new tab and doing the work in there, etc.). Anyone know of something that will work without getting some kind of security error?
EDIT: So far the best solution I've come up with is using a background script to open a new tab, and use content scripts to manipulate its content. It would be really nice if I could just load the page into an iframe, and then send content scripts just to that iframe, but I haven't figured out how to do that.
In the page header of your embedded page, include the following header:
X-Frame-Options: ALLOW-FROM www.example.com
This bypasses at least Chrome and Firefox. Your mileage may vary on IE.
Related
Can I embed a Microsoft Teams video meeting into my website using an iframe or other technology?
When I tried, I got this error:
Refused to display 'https://teams.live.com/' in a frame because it set
'X-Frame-Options' to 'sameorigin'.
Can it be cheated somehow?
No you can't. The error message is telling you exactly why not: Microsoft have set a HTTP header in the Teams site which instructs the browser not to load the page into any kind of frame unless that frame is within the teams.live.com website.
The MDN documentation for X-Frame-Options says
The X-Frame-Options HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a <frame>, <iframe>, <embed> or <object>. Sites can use this to avoid click-jacking attacks, by ensuring that their content is not embedded into other sites
This is not something you can override - if you could, setting the header would immediately become completely pointless, since anyone with malicious intent would simply choose to ignore it.
Good day everyone.
So I have a website and I am trying to embed in an iframe a dynamics server and it keeps throwing an error something about
'Refused to display https://XXXXXXXXXXXX in a frame because it set 'X-Frame-Options' to 'deny'.
Any ideas how I can get it to work?
This happens when we try to redirect the page to a login page.
Thanks
Check X-Frame-Options hearder:
The X-Frame-Options HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a <frame>, <iframe>, <embed> or <object>. Sites can use this to avoid clickjacking attacks, by ensuring that their content is not embedded into other sites.
Based on the above statement, this is something that the 'https://XXXXXXXXXXXX' has added to the page to disallow it from being used as an <iframe>
You can see that this can even be configured globally on a web server level, to secure all the websites.
If the website is in the same domain the workaround is easier using SameOrigin value.
If you want to allow all, then just don't set the response header for the XXXXXXXX site at all (if you have access to it).
I'm trying to develop an extension similar to that of Pinterest's PinIt extension for google chrome. In general, i know that loading any URL in an iframe which is not from the same origin would result in giving an error "Refused to display 'https://www.someWebsite.com/' in a frame because it set 'X-Frame-Options' to 'DENY'."
However, i do see that Pinterest is loading a URL on any website when using their extension. For Example, i was using the extension on instagram.com (i've used it on other sites as well) and then i took a screenshot of what i could not understand. (Please refer to selected area in DOM)
Can anyone tell me how this can be achieved or probably how pinterest is doing this?
X-Frame-Options dictate which frames can embed the page, not which pages can be embedded in it.
So if, say, https://www.someWebsite.com/ disallows to be embedded, X-Frame-Options doesn't prevent embedding https://www.someOtherWebsite.com/ inside it (if the other website allows it).
However, child-src or frame-src Content Security Policy directive can prevent embedding another page.
In theory, both mechanisms can be be overridden by webRequest API. However:
PinIt doesn't use it, so logically it should fail on some sites.
http://content-security-policy.com/ is an example where it simply fails.
There may be additional countermeasures if you decide to circumvent response headers.
It's a cat and mouse game if some resource is unwilling to be embedded or allow embeds.
By changing CSP headers, you are weakening security considerably for your users.
I finally figured out how to deal with this. I still do not know how exactly pinterest is doing it but i'm sure i'm close to it.
I simply load an iframe in the body of the parent by injecting my own JS to the page.
Then i iterate through all the images available on the page like
$('img).each(function(){
// do my stuff to see if i need this image
// push them in an array (say, var imgArray)
})
var imgToString = imgArray.toString();
var myIframe = document.getElementById('iframe_id').contentWindow;
myIframe..postMessage(imgToString , '*');
And then in the iFrame that i load, i recieve the message and use the images...
So the gist of the whole issue is that postMessage() is my saviour.
So I am going to be brutally honest about my motive. I am using one of the many video streaming sites out there...it has great quality content, however it has tons of popups and it doesn't work when my ad-blocker is on.
I have been trying to disable the ads when I load the page, but I am unable to set values of the attributes inside of the iframes.
I can select the iframe itself using:
window.frames[x]
However once I try and do anything example
window.frames[1].getElementByClassName('classname').length
I get an error in the console log that says
Uncaught DOMException: Blocked a frame with origin
"http://url.com" from accessing a cross-origin frame.
Any suggestions on how I can circumvent this? I have seen similar posts, but most people are trying to interact with the iframe they are using on their own sites, I want to use a chrome extension to inject the js onload for the site I am accessing.
I imagine the reason I cannot do this has to do with security restrictions, but I figured it was worth a shot asking.
The only way to do this is to setup your own local proxy server and use that to inject your JavaScript into their page.
I'm loading a webpage inside iframe of a background page in chrome extension. I need to fetch the content (i.e. DOM) of iframe. I'm getting protocol error. how to overcome this situation, any workaround.
"Unsafe JavaScript attempt to access frame with URL https://swym.3ds.com/ from frame with URL chrome-extension://ohhaffjbbhlfbbpcdcajbkeippadmipk/back.html. The frame requesting access has a protocol of 'chrome-extension', the frame being accessed has a protocol of 'https'. Protocols must match."
I'm trying to implement a desktop notification for the above site, hiding the process from user eye.
I tried using XMLHTTPRequest and Jquery GET, unfortunately my site loading is unstandard, it doesn't work as intended.
Any suggestion on this topic will be very helpful.
It seems you're facing Cross-origin resource sharing issues. Do a quick check for resources loaded with protocols, convert http://www.example.com resources to //www.example.com Also refer MDN CORS Article
Javascript cannot access content on another domain as it poses security risks. If you have control over the domains, you may use postMessage to overcome this. Take a look at this link