If one turns off ajax and removes all the blocks from the standard theme front page right column it is impossible to get blocks back into that column.

Reproduction steps:

1. Log in as admin
2. Navigate to the Home page
3. In the Settings block under Front page settings, click Turn editing on
4. Shift all blocks on the right to the left column
5. Navigate to Site admin > Appearance > AJAX and JavaScript
6. Uncheck Enable AJAX
7. Return to the Home page
8. Attempt to move a block from the left column to the right column

Expected result: A target location should appear in the right column

Actual result: No target area appears