Sign in I did go through that before I posted it here. Are you sure you are not just "too fast" for being seen? If the long running request could use "Connection: close" then it would be possible to request that it not tie up the persistent connection and cause (for example) an unnecessary 5 second delay (where 5 seconds is the keep-alive time). I want to send an ajax request and set the request headers "Connection" and "Keep-Alive". XMLHttpRequest isn't allowed to set these headers, they are being set automatically by the browser. I have found out you cant even have an ssl certificate on a BC site. Apple disclaims any and all liability for the acts, Sign in The text was updated successfully, but these errors were encountered: You can ignore this warning. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Counting and finding real solutions of an equation, Tikz: Numbering vertices of regular a-sided Polygon. Change the product size to produce the error. The standard for XMLHttpRequests prescribes that these two headers should not be set by the client in order to avoid request smuggling attacks. This happens when I try to assign Content-length and Connection properties to XmlHttpRequest object. But as it stands i could not go live with this issue. You should try to just print your results to console using e.g. Unfortunately, XMLHttpRequest doesn't allow you to reuse the same connection for multiple requests, as doing so could bypass security checks. Could be prototype or could be the request header value capitalisation bug in safari. Is this a known issue.? and when I look at the response header it has "Connection: keep-alive" in there, which is what's causing this. I seem to have configured everything correctly to allow Cookie header on server and client: When looking for a solution on the web, I saw that you need to set the Access-Control-Expose-Headers header, like so: Access-Control-Expose-Headers: Content-Length But I don't know how to do this for files like ZIP archives in my case http://developer.mozilla.org/en/XMLHttpRequest_changes_for_Gecko1.8 Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not? Your answer makes total sense if i had been deeper into the site on a test visit and seen the padlock, then backed out, but i can see the issue every time regaardless. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I've never really done that. The error is preventing pertinent product information from being displayed to the customer when they ask for it. the more I have requests the more the console gets messy and it's harder to debug. So you either need to set menu links to absolute urls of your proper domain or write a bit of javascript to auto update the links so when someone clicks them they are not under that. I am facing same issue in android 4.4 did you find any solution for this yet ? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. I will need to work thrugh this in my mind to fully understand it, and how to get around it. provided; every potential issue may involve several factors not detailed in the conversations Create a GET request using GetConnect. So safari means you cant set the header "Connection". How to disable `Refused to set unsafe header` in node js? thanks from user @robertklep for his solution. jQuery $.ajax(), $.post sending "OPTIONS" as REQUEST_METHOD in Firefox, Getting only response header from HTTP POST using cURL, Access Control Request Headers, is added to header in AJAX request with jQuery, Cookie Header in PhoneGap: Refused to set unsafe header "Cookie". CORS, Preflight Request, OPTIONS Method | Access Control Allow Origin Error Explained, Salesforce: Refused to set unsafe header "User-Agent": connection.js (2 Solutions!! You can reproduce it by changing the box size of the product. Maybe you can factor it out into a function and. 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Adding a button seems like an easy task. I don't personally use Mootools on my sites, so I can't see that I can do anything on my end. How to send a header using a HTTP request through a cURL call? Is there's a way to get rid of that error? JavaScript : AJAX post error : Refused to set unsafe header "Connection Refused to set unsafe header Content-length Refused to set unsafe header Connection errors in FF 3.0.3 and Google Chrome with IIS server. How to combine independent probability distributions? client.putFileContents explicitly sets the content-length to the length property of what was passed in. I see the error in chrome Version 31.0.1650.57 also, on both my site and the url i poined at above . Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? Refused to set unsafe header 'User Agent' and the field is changed but primary tab isn't refreshed, but after manually reloading a page, I can see the change; in classical UI everything works except firing the same error. Connect and share knowledge within a single location that is structured and easy to search. node.js ajax Share Refused to set unsafe header "Connection" - Google Groups The ajax call is made when you make a change inside the grouping dropdown. What is the URL in the addressbar when you are doing that? Re: "it should be possible to request that it not tie up the persistent connection." (BTW I'm using Chrome, latest version). The Google Chrome console says: Refused to set unsafe header "Content-length" and Refused to set unsafe header "Connection". I will look this up in our bug logger and add a vote for it, but the issue will most likely remain low priority. Older browsers that allows this are probably broken. I can't see this on my site. I am also seeing Firefox show my site as "Untrusted". Refused to set unsafe header Content-length Refused to set unsafe header Connection, http://developer.mozilla.org/en/XMLHttpRequest_changes_for_Gecko1.8, http://www.google.com/search?hl=en&q=setRequestHeader%28%22Content-length%22+AND+Firefox&btnG=Google+Search&aq=f&oq. @anunixercoder: You don't. Futuristic/dystopian short story about a man living in a hive society trying to meet his dying mother. I have the following custom ajax function that posts data back to a PHP file. What were the most popular text editors for MS-DOS in the 1980s? The reason is that by manipulating these headers you might be able to trick the server into accepting a second request through the same connection, one that wouldn't go through the usual security checks - that would be a security vulnerability in the browser. Whether BC is still using that version, I don't know. It is not a JavaScript error, a "non-error". Now configurable via options.contentLength on putFileContents. Pay attention to the web console once you make the request. Section 4.6.2 of the W3C XMLHttpRequest Level 1 spec lists headers that "are controlled by the user agent" and not allowed to be set with the setRequestHeader() method. I did set these to relative, as i am using a temporary parked url at the moment until i am ready to swith my existing url over to BC. Refused to set unsafe header "User-Agent": connection.js Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? GetConnect defines a user-agent and it should be allowed according to the current http specifications. Is this a related issue due to this unsafe header request..? Already on GitHub? The response that comes back from the server has a Connection parameter in the header and Chrome throws that warning. Run on the web. I'll just go tell my client they are imagining things. It's not too fast because it works on Firefox and it takes 1/2 seconds to change the port. Is there a weapon that has the heavy property and the finesse property (or could this be obtained)? @eduardoflorence Thanks for the fast response. Refused to set unsafe header "Connection". Afterwards, the jquery that produces the tab functionality breaks and that tab's contents never get rendered. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey. Maybe you will find something on the client side too. ask a new question. Why did US v. Assange skip the court of appeal? Note: The User-Agent header is no longer forbidden, as per spec see forbidden header name list (this was implemented in Firefox 43) it can now be set in a Fetch Headers object, or via XHR setRequestHeader (). So if you run it from Firefox 43+, it will not show Refused to set unsafe header "User-Agent" I am far from educated in things like firewalls, dns, proxys etc etc.. but could i have something that makes me see this issue when no one else does..? All postings and use of the content on this site are subject to the. Mac OS X (10.5.2), Apr 22, 2008 10:12 AM in response to askpete. Dedicated community for Japanese speakers, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/td-p/5623044, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623045#M34483, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623046#M34484, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623047#M34485, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623048#M34486, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623049#M34487, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623050#M34488, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623051#M34489, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623052#M34490, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623053#M34491, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623054#M34492, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623055#M34493, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623056#M34494, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623057#M34495, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623058#M34496, /t5/business-catalyst-discussions-read-only/refused-to-set-unsafe-header-quot-connection-quot/m-p/5623059#M34497.