RadInputManager IndexSizeError in Firefox 32

3 posts, 1 answers
  1. Sypher
    Sypher avatar
    79 posts
    Member since:
    Aug 2006

    Posted 29 Sep 2014 Link to this post

    I'd post this as a support ticket, but our support just ran out last week (of course)...

    This seems to be a new issue with 2014.2.724.45, as the exact same code is working on our production site but is giving this error in Firefox on our Beta site

    IndexSizeError: Index or size is negative or greater than the allowed amount

    The error shows up in the if(c.originalMaxLength) line below

    updateValue:function(d){var c=$get(this._id);
    var e;
    var f=c.value;

    This is showing up on our Login page that uses telerik:RadInputManager to make the user name and password fields required.

    <telerik:RadInputManager runat="server" ID="rim">
        <telerik:TextBoxSetting BehaviorID="textRequired">
            <Validation IsRequired="true" />
                <telerik:TargetInput ControlID="UserName" />
                <telerik:TargetInput ControlID="Password" />

    If I comment out the RadInputManager, the page works fine, although without validation. If I leave the code in, we get the error message in the Firebug console in Firefox 32.0.3 and the password box won't accept any typing at all. It works fine in IE and Chrome.

    Live beta site example at https://beta.connectionsonline.net/

    I noticed that Mozilla has a similar issue listed as a bug with Firefox 30 and 31, but I'm not sure if it is related: https://bugzilla.mozilla.org/show_bug.cgi?id=987227
  2. Answer
    Vasil avatar
    1625 posts

    Posted 30 Sep 2014 Link to this post

    Hi sypher,

    This issue happened when we fixed a bug in IE, where the form was not able submit if the empty message in given field was longer than the max length set for the input.

    By that time it worked correct in all browsers, but then Firefox introduced browser bug.
    When a Input element have not max length set the its maxLength property returns "-1" instead of 0.

    So when you get the max length, and then try to set the same max length the browser throw error that says -1 is not permitted value for the maxLength attribute.

    We have fixed this, and if you test the hotfix builds it should work correct. In the upcoming beta that will be released this week it should work correct as well.


    Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

  3. Sypher
    Sypher avatar
    79 posts
    Member since:
    Aug 2006

    Posted 01 Oct 2014 in reply to Vasil Link to this post

    Adding a MaxLength fixed it for me. I assume I no longer have access to the betas/fixes/etc.
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