Paste not working on IE10

[Daniel]

Pasting text in the editor does not work in IE10, neither pasting plain text.

When you try to paste the following error is shown:

SCRIPT5007: No se puede obtener la propiedad 'specified' de referencia nula o sin definir (Unable to get value of the property 'specified': object is null or undefined)

Error line: ckeditor.js, line 76 Carácter 458

[Jakub Ś]

I have just checked demo version and latest CKEditor 4.1 - both work as expected.

Please provide more information like:

1. Where do you copy text from (please attach file if possible)
2. What do you use for pasting - toolbar buttons or perhaps ctrl+V
3. Do you get same problem in CKEditor 4.1
4. Do you by any chance use devtools to change IE10 mode e.g. to IE8 mode (Please provide screen shots if possible)
5. Have you made any customizations to the core code or you are using custom plugins that might be causing this.
6. Could you attach your build-config.js