Image Source URL is missing error in chrome/safari

[Matt]

If you contain a right aligned image in a h1 tag for example, the 'image properties' option is missing when you right click on the image in Google Chrome or Safari 4. This is the code in the editor:

<h1><img align="right" src="​http://dev.fckeditor.net/chrome/site/logos.gif" />Test</h1>

In ckeditor, the Image properties is available in the dropdown, but it results in no image showing in the preview in Image Properties and the following error when clicking ok: 'Image source URL is missing'

I am experiencing this problem in FCKEditor 2.6.5 and Ckeditor 3.1

[Alfonso Martínez de Lizarrondo]

dup of #2570