Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

why is new XmlHttpRequest() throwing an exception in Firefox 4.0.1

  • 1 பதிலளி
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 1 view
  • Last reply by cor-el

the following javascript has been working in prior version of Firefox (3.x) but is throwing an exception in Firefox 4.0.1 oddly enough the request object is being created in the try block but then is nulled in the catch block

   var xmlHttp;
   // branch for native XMLHttpRequest object
   if(window.XMLHttpRequest) {
   	try {

xmlHttp = new XMLHttpRequest();

       } catch(e) {

xmlHttp = null;

       }
   // branch for IE/Windows ActiveX version
   } else if(window.ActiveXObject) {
     ....
the following javascript has been working in prior version of Firefox (3.x) but is throwing an exception in Firefox 4.0.1 oddly enough the request object is being created in the try block but then is nulled in the catch block var xmlHttp; // branch for native XMLHttpRequest object if(window.XMLHttpRequest) { try { xmlHttp = new XMLHttpRequest(); } catch(e) { xmlHttp = null; } // branch for IE/Windows ActiveX version } else if(window.ActiveXObject) { ....

All Replies (1)

A good place to ask questions and advice about web development is at the mozillaZine Web Development/Standards Evangelism forum.
The helpers at that forum are more knowledgeable about web development issues.
You need to register at the mozillaZine forum site in order to post at that forum.

See http://forums.mozillazine.org/viewforum.php?f=25