Aspell Spell Helper produces broken hyperlinks to M-W

For example, see submittable [1].  The entry is in the dictionary but the hyperlink [2] is fake.
I am not sure though whether this is an ASH problem or an M-W problem, compare doable [3].

___
[1] <URL:http://suggest.aspell.net/index.php?word=submittable&spelling=english&dict=normal&sugmode=slow>
[2] <URL:http://www.merriam-webster.com/dictionary/submittable>
[3] <URL:http://www.merriam-webster.com/dictionary/doable>