:) Linking to the blog is fine IMO, since it really is the full answer to the question with sample code and a download.

So i want to send a XMLHttpRequest POST request through an iFrame on page load. For a Firefox addon running with chrome privs, don't try to eval anything you get from an outside source. What are China's Interests in the Arctic? Please leave a comment, if you want me to remove the link.

Using the src="data:text/html,, you can do it but you have to take care at least about the encoding of the script, You can read more details about it Why would you need to attach it to the iframe?

@Julius Yes, and unfortunately we can't spoof IP. Get the size of the screen, current web page and browser window. Sign in to enjoy the benefits of an MDN account. To learn more, see our tips on writing great answers. What benefit would a deity gain from spreading out a conflict over a long period of time? The parsed response data can then be accessed via the response property: Compatibility: responseType = 'json' is not supported by IE11. what does 256 bytes of internal memory (RAM) on a microprocessor mean? XMLHttpRequest can make cross-origin requests, using the same CORS policy as fetch. What is the difference between "split the money" and "go dutch"? here and i.e, @Julius ...strange, the origin in the request headers of the xhr request are null... at least on the brows I tested, While no-referrer meta could solve this in.

Use nsIJSON if this is for a FF extension: For a webpage, just use JSON.parse instead of Components.classes["@mozilla.org/dom/json;1"].createInstance(Components.interfaces.nsIJSON.decode. I think my script is a good solution to the problem, so I posted it here. Temperature change in Earth atmosphere models? The XMLHttpRequest object can be used to request data from a web server. in any case you have to add more checks e.g.

your coworkers to find and share information. Thank you!

With this approach you use fetch() to send a request and ResponseBody.json() to parse the response: Compatibility: The Fetch API is not supported by IE11 as well as Edge 12 & 13. http GET method to minehut API returns undefined, How to send JavaScript object/array to front-end - node.js app, How to create a foreach loop to place syllables in each input of their respective word, Uncaught TypeError: Cannot read property 'message' of undefined, Sending back a JSON object in a response (not string version), Creating a simple web method to return a proper JSON. rev 2020.10.23.37878, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, +1; IMO this was the real answer to the question - no jQuery just plain old vanilla. Get the latest and greatest from MDN delivered straight to your inbox. Also, browsers set the referrer in ajax requests (see this and this) despite of the fact that exists a referrer header to manipulate the referrer behavior.

The load event is fired when an XMLHttpRequest transaction completes successfully. How do I return the response from an asynchronous call?

To learn more, see our tips on writing great answers. Just like fetch , it doesn’t send cookies and HTTP-authorization to another origin by default. Stack Overflow for Teams is a private, secure spot for you and What was needed was possible a connector, hence the reason for the onload function. This is: redirecting all ajax requests to one server controlled by you, in the server you perform a POST/GET request and in this case hiding the referrer. (I've removed a lot of the common headers like content-length and cache-control for redablilty) PSO. If you prefer to use responseJSON, but want a more lightweight solution than JQuery, you might want to check out my JSONHttpRequest. I have updated the question to answer your questions, with a code that POST normal request without sending referrer which works on any browser, and also added a workaround for XMLHttpRequest POST with no-referrer meta tag. Since when do political debates have a winner? How can I pretty-print JSON in a shell script? You can simply set xhr.responseType = 'json'; it adds a prototype function to the XMLHttpRequest .. XHR2, in XHR 1 you probably just need to replace this.response with this.responseText. @fedeghe answer, This code shows the referrer.

Is there anything preventing a first-level alchemist from buying a sixth-level alchemical formula? Detect when browser receives file download. However, the issue with curl approach is that, it uses the server IP instead of User IP. Where do I complete my departure immigration step? if it's not able to parse the json.

Also browser support is limited to Chrome and Firefox. A long as your request is asynchronous you can use the Fetch API to send HTTP requests. Making statements based on opinion; back them up with references or personal experience. Content is available under these licenses. For a referrer to not show, the logic was to make the default iframe src be about:blank. Why do french say "animal de compagnie" instead of "animal".

More details and the code can be found here: http://pixelsvsbytes.com/2011/12/teach-your-xmlhttprequest-some-json/. Which is the difference between srcdoc=“…” and src=“data:text/html,…” in an