Unable To add Inline comment in IE

Steps to replicate

1. Install Confluence 5.7
2. install Source editor
3. Create a page
4. After creating a page, click edit and then open the source editor "<>"
5. Add the following in the source editor:

   test test

6. Save the page
7. Higlight the word test test and add inline comment

OR

1. Install Confluence 5.7
2. Create a page
3. Click edit and create a task using IE11, adding a space at the end of the task.
4. Save the page
5. Highlight the task (including the space at the end)
6. Try to add an inline comment

Observed Behavior

You will see an error "Could not save the comment"

Expected Behavior

The user should be able to save the comment

Workaround
Use different browser such as Google Chrome and Mozilla firefox

*Update: Ondemand customers already got the fix automatically. For server customers who are still using Confluence 5.7, please update the Inline Comments plugin using our latest version*