UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

Steps to reproduce the problem:
1. Open this code snippet https://codepen.io/msamsel/pen/yoaRWP
2. Put cursor caret at the end of cell. After last letter in specific cell
3. Right click to open context menu

You can also use just regular table, with some tools which investigate current selection.

What is the expected behavior?
Selection won't change, or selection remain inside this same cell

What went wrong?
Selection is enlarged, changed to range type and focusNode point to next cell.
We had caret type selection inside one cell and this create range type selection with 2 cells.

Did this work before? N/A 

Does this work in other browsers? No
 Behaviour is the same in Safari

Problem doesn't exist on Firefox.

Chrome version: 59.0.3071.115  Channel: n/a
OS Version: OS X 10.12.6
Flash Version: 

It seems that problem is related to feature which automatically highlight and select word which is right clicked. Unfortunately here selection point to next cell what seems to be not ok.

You can make this same type of selection if you put caret after last letter in cell, and then use Shift + Right Arrow to select next character. This will select 2 cells but not first character in next cell.