UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36

Steps to reproduce the problem:
1. Open the attached pasteTransform.html in Chrome. 
2. Look at the source of the document. Notice that the formatting has B elements. 
3. Select all the text in the contenteditable and cut it using Ctrl/Meta+A, Ctrl/Meta+X
4. Paste it back into the contenteditable using Ctrl/Meta+V
5. Look at the HTML now. Notice the B elements have been replaced with SPAN elements with styles.

What is the expected behavior?
The pasted HTML should be the same as the cut HTML.

What went wrong?
All formatting tags (B, I, U) are converted to SPAN elements with style attributes. The HTML should not be transformed in this manner.

Did this work before? N/A 

Chrome version: 52.0.2743.82  Channel: stable
OS Version: OS X 10.11.5
Flash Version: Shockwave Flash 22.0 r0

The HTML in my example file is what I get from using standard execCommand statements and typing. No special code was used to modify what Chrome created. 

Before I cut the HTML the contenteditable contains:

<div><b><br></b></div><b>aaaa</b>

After the cut/paste operation this is the result:

Mac: <br class="Apple-interchange-newline"><span style="font-weight: bold">aaaa</span>
Windows:  <div><br></div><div><span style="font-weight: bold;">aaaa</span><br></div>

The formatting tags shouldn't be transformed in this manner by a simple cut/paste operation.
 

Deleted: pasteTransform.html 277 bytes

pasteTransform.html 277 bytes View Download