Resizing images works ok in Firefox but not in IE

To be more specific: resizing by dragging the corner controls on the the image after you select it does not work. Clicking the image button and typing new dimensions in the properties window does work though.

Thanks for the pointer. I have now spent a couple of hours reading their forum and have found a couple of bugs that sound related, but they were either fixed in an earlier release or left open to starve. I don't get the impression they are eager to look into issues with the 2.x version anyway...

So I did some further testing. Before I installed the Wysiwyg-module I was using the TinyMCE-module. I was pretty sure this resizing thing used to work back then. Luckily I had just disabled the module and it was still on my system. So I disabled Wysiwyg and re-enabled TinyMCE, and yes! resizing does work again!
Looking at the generated HTML I notice that after inserting an image it has width and height set like so:

<img width="120" src="/files/images/IMG_2866.thumbnail.JPG" height="120">

After resizing a style attribute is added:

<img width="120" src="/files/images/IMG_2866.thumbnail.JPG" height="120" style="width: 292px; height: 160px">

This style-adding is not happening in Wysiwyg.
It must be some setting Wysiwyg is (not) feeding tinymce, or differently from the TinyMCE-module, but I can't find it...

Please note that both Wysiwyg and TinyMCE are using the exact same version of the tinymce library, so it is almost impossible that this is a moxiecode issue.

Ah, got it!
It appears to be more of a img_assist issue than a Wysiwyg API issue, so moving it to that project's queue.

Since TinyMCE running in IE insists in using the style attribute in the img tag to feed the new image size into the HTML, this style attribute should be included in the extended_valid_elements setting.

 'extended_valid_elements' => array('img[class|src|border=0|alt|title|width|height|align|name|style]'),

This patch fixes the image resizing problem for me.