Firefox setting to enable cross domain Ajax request

Question

I need to temporally allow cross domain XMLHttpRequest  Changing firefox security setting seems to be the way to go  But I ve tried with this and this but they didnt work  Has anyone been able to configure this before  Thanks

User · Answer

If you just don t want to waste your time on cross-domain issues during development and testing of your app you can use addon Force CORS for FF   UPDATE  It seems that this addon no longer exists  But there is another option - this Chrome extension

User · Answer

Have you tried using jQuery s ajax request  As of version 1 3 jQuery supports certain types of cross domain ajax requests   Quoting from the reference above      Note  All remote  not on the same   domain  requests should be specified   as GET when  script  or  jsonp  is the   dataType  because it loads script   using a DOM script tag   Ajax options   that require an XMLHttpRequest object   are not available for these requests    The complete and success functions are   called on completion  but do not   receive an XHR object  the beforeSend   and dataFilter functions are not   called       As of jQuery 1 2  you can load JSON   data located on another domain if you   specify a JSONP callback  which can be   done like so   myurl callback       jQuery automatically replaces the     with the correct method name to call    calling your specified callback  Or    if you set the dataType to  jsonp  a   callback will be automatically added   to your Ajax request

User · Answer

Here is the thing  there is no way to  temporarily  disable cross-domain XMLHttpRequest  if you can disable it temporarily then it can be disabled permanently   This is a rather common problem in the modern-day of AJAX programming and is most often solved using the technique known as cross-domain scripting     The idea here being is that if you call out to a cross-domain script it returns JavaScript  JSON  results that are then passed on to a function on your end     Here is some sample code to illustrate how it may look from a JavaScript code perspective     function request some data         var s    http   my document url com my data p1 v1 amp p2 v2 amp callback myfunc          try           try            document write   lt scr   ipt type  text javascript  src    s    gt  lt  scr   ipt gt                        catch e             var x   document createElement  script              x src   s            document getElementsByTagName  head   0  appendChild x                           catch  e            alert e message                  You will then define a function in your code that receives the data and in the server you  handle  the callback case  here is the client-side JavaScript   function myfunc data      alert data       And on the server side  here i m giving a PHP example but this can be done just as easily in Java or what-ever your server-side technology is    lt  php    if   GET  callback           print   GET  callback                      place your JSON object code logic here       if   GET  callback           print                gt    Note that what you are generating on the server side winds up being some JavaScript that gets executed on the client side

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I used Fiddler as a proxy  Fiddler redirects localhost calls to a external server   I configured Firefox to use manual proxy  127 0 0 1 port 8888   Fiddler capture the calls and redirect them to another server  by using URL filters

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For modern browsers  you may try the following approach   https   developer mozilla org en HTTP access control  In short  you need to add the following into the SERVER response header  the following allows access from foo example    Access-Control-Allow-Origin  http   foo example Access-Control-Allow-Methods  POST  GET  OPTIONS Access-Control-Allow-Headers  X-PINGOTHER Access-Control-Max-Age  1728000   Note that the X-PINGOTHER is the custom header that is inserted by JavaScript  and should differ from site to site   If you want any site access your server in Ajax  use   instead     Edit   When I first answered the question by 2009  I actually hit the same problem  and I worked around it using the server side config   There was no plugin on FF or Chrome by then   However  now we do have alternatives using the browser side plugin  please check the answer of tsds

User · Answer

You can check out my add on for firefox  It allows to cross domain in the lastest firefox version  https   addons mozilla org en-US firefox addon cross-domain-cors

User · Answer

To allow cross domain    enter about config accept to be careful enter security fileuri strict origin policy in the search bar change to false   You can now close the tab  Normally you can now make cross domain request with this config   See here for more details

User · Answer

What about using something like mod proxy  Then it looks to your browser like the requests are going to the same server  but they re really being forwarded to another server

User · Answer

I m facing this from file     I d like to send queries to two servers from a local HTML file  a testbed    This particular case should not be any safety concern  but only Safari allows this   Here is the best discussion I ve found of the issue

User · Answer

Manually editing firefox s settings is the way to go  but it s inconvenient when you need to do it often   Instead  you can install an add-on that will do it for you in one click   I use CORS everywhere  which works great for me   Here is a link to the installer

User · Answer

I ve tried using that  UniversalBrowswerRead  thing too and it didn t work  You might be able to add an  allow  header  but I haven t actually tried doing it yet  It s pretty new   You can find more information here

[javascript] Firefox setting to enable cross domain Ajax request

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