I http://dev.w3.org/2006/webapi/WebIDL/#es-dictionary (2nd Ed.), section 4.2.20 step 4 sub-step 1 has:

| 1. For each dictionary member <var>member</var> declared on <var>D</var>, in order:

which probably should read:

| 1. For each dictionary member <var>member</var> declared on <var>dictionary</var>, in order:

Note that the <var>dictionary</var> in step 4 otherwise has no referent.

| 4. For each dictionary <var>dictionary</var> in <var>dictionaries</var>, in order:

Note also the language in step 3 sub-step 1 in the following material under "An IDL dictionary value is converted..." for comparison:

| 1. For each dictionary member <var>member</var> declared on <var>dictionary</var>, in order: