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!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Since Update to FF30 always get TypeError: Constructor XMLHttpRequest requires 'new', before no problem. What changed?

  • 2 replies
  • 3 have this problem
  • 1 view
  • Last reply by Kohei

Darkfiredragon
Darkfiredragon
more options

Since the update this morning to FF30 i get the errormessage from the js

TypeError: Constructor XMLHttpRequest requires 'new'

Code:

function ajaxManager() { var request; var versions=new Array('MSXML2.XMLHTTP.7.0','MSXML2.XMLHTTP.6.0','MSXML2.XMLHTTP.5.0','MSXML2.XMLHTTP.4.0','MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP','Microsoft.XMLHTTP'); if(document.getElementById) { if(window.XMLHttpRequest()) { request=new XMLHttpRequest(); } if(window.ActiveXObject) { for(var i=0;i<versions.length;i++) { try{ request = new ActiveXObject(versions[i]); } catch(exception) { } } } } return request; } </p>

I hope someone know what changed or what i missed.

Since the update this morning to FF30 i get the errormessage from the js TypeError: Constructor XMLHttpRequest requires 'new' Code: function ajaxManager() { var request; var versions=new Array('MSXML2.XMLHTTP.7.0','MSXML2.XMLHTTP.6.0','MSXML2.XMLHTTP.5.0','MSXML2.XMLHTTP.4.0','MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP','Microsoft.XMLHTTP'); if(document.getElementById) { if(window.XMLHttpRequest()) { request=new XMLHttpRequest(); } if(window.ActiveXObject) { for(var i=0;i<versions.length;i++) { try{ request = new ActiveXObject(versions[i]); } catch(exception) { } } } } return request; } I hope someone know what changed or what i missed.

Chosen solution

Found a working solution now by myself:

"if(window.XMLHttpRequest()) {"

changed to

"if(window.XMLHttpRequest) {"

Seems the old way i used now not working anymore

Read this answer in context 👍 0

All Replies (2)

Darkfiredragon
Darkfiredragon Question owner
more options

Chosen Solution

Found a working solution now by myself:

"if(window.XMLHttpRequest()) {"

changed to

"if(window.XMLHttpRequest) {"

Seems the old way i used now not working anymore

Kohei
Kohei
more options

See the Firefox 30 compatibility document for details: https://developer.mozilla.org/en-US/Firefox/Releases/30/Site_Compatibility