IE8, Ckeditor.js, Line: 668, Column: 449, Unable to get property 'items' of undefined or null reference

[OHDev]

This only happens with IE8

SCRIPT5007: Unable to get property 'items' of undefined or null reference
   File: ckeditor.js, Line: 668, Column: 449

problem is that b.length is 11, while it should be 9 so in the loop at index 10 d is undefined, thus d.items is also undefined.

function h(b) {
                var a = [], e, d, h;
                for(e = 0; e < '''b.length'''; ++e) {
                    d = b[e] , h = {
                    } , "/" == d ? a.push(d) : CKEDITOR.tools.isArray(d) ? (c(h, CKEDITOR.tools.clone(d)) , a.push(h)) : '''d.items''' && (c(h, CKEDITOR.tools.clone(d.items)) , h.name = d.name , a.push(h));
                }
                return a;
            }

I have the following setup in config.js:

    config.toolbar = [
        { name: 'paragraph', groups: ['list', 'indent', 'blocks', 'align', 'bidi'], items: ['NumberedList', 'BulletedList', '-', 'Table', 'HorizontalRule', 'SpecialChar', 'PageBreak', '-', 'Outdent', 'Indent', '-', 'Blockquote', 'CreateDiv', '-', 'JustifyRight', 'JustifyCenter', 'JustifyLeft', 'JustifyBlock', '-', 'BidiRtl', 'BidiLtr'] },
        { name: 'links', items: ['Link', 'Unlink', 'Anchor'] },
        { name: 'document', groups: ['mode', 'document', 'doctools'], items: ['Save', 'NewPage', 'Preview', 'Print'] },
        { name: 'clipboard', groups: ['clipboard', 'undo'], items: ['Cut', 'Copy', 'Paste', 'PasteText', 'PasteFromWord', '-', 'Undo', 'Redo'] },
        { name: 'editing', groups: ['find', 'selection'], items: ['Find', 'Replace', '-', 'SelectAll', '-', 'Scayt'] },
        { name: 'forms', items: ['Checkbox', 'TextField', 'Textarea', 'Select', 'Button'] },
        '/',
        { name: 'basicstyles', groups: ['basicstyles', 'cleanup'], items: ['Bold', 'Italic', 'Underline', 'Strike', 'Subscript', 'Superscript', '-', 'RemoveFormat'] },
        { name: 'styles', items: ['Font', 'FontSize', 'TextColor', 'BGColor'] },
        { name: 'tools', items: ['Maximize'] }
    ];

    // Toolbar groups configuration.
    config.toolbarGroups = [
        { name: 'paragraph', groups: ['list', 'indent', 'blocks', 'align', 'bidi'] },
        { name: 'links' },
        { name: 'document', groups: ['mode', 'document', 'doctools'] },
        { name: 'clipboard', groups: ['clipboard', 'undo'] },
        { name: 'editing', groups: ['find', 'selection'] },
        { name: 'forms' },
        '/',
        { name: 'basicstyles', groups: ['basicstyles', 'cleanup'] },
        { name: 'styles' },
        { name: 'tools' }
    ];

[OHDev]

Printscreen of the locals watch

[OHDev]

The website is Developed with ASP.NET DotNetFramework 4.0, hosted on Intranet, IIS 7.5, 32 bit I'm using the ASP.NET ckEditor wrapper.

[Jakub Ś]

I have tried on IIS 7.5 with CKEditor 3.6.4 ASP.NET with client side updated to CKEditor 4.3.3 Full package (I have exchanged CKE_ASPNET/_Samples/ckeditor/ folder to newer one) but didn’t get this issue.

I have updated config.js to what you have, refreshed cache, reloaded page but nothing happened.

Please provide more details and/or reduced test-case file(s) allowing to reproduce this problem in default CKEditor build (server-side 3.6.4 and client-side 4.3.3 with no core code changes or third-party plugins installed).

[OHDev]

Have you tried it with Internet explorer 8, or with IE8 Compatibility?

I tried to reproduce this alone but I couldn't yet. I will try again.

[Jakub Ś]

I tried to reproduce this alone but I couldn't yet. I will try again and sorry for the late reply

It is possible that your application has some third party scripts that conflict with editor thus you get this error.
Another possibility is that you have some third-party plugins in editor that cause this behaviour. Please try with default package only.
Finally you might have some plugin in IE that causes this.