Geoposition lookup fails when postal code contains non-alphanumeric characters

[LuchtwachtersDelft]

Postal codes can contain (optional) whitespace, hyphens and possibly other non-alphanumeric characters. Openstreetmap geoposition returns an empty result set when the postal code contains any non-alphanumeric characters.

Examples:

51 Street 201-4911 Red Deer Canada

Kloosterweg 22 6412 CN Heerlen Netherlands

[pjgueno]

So you have to set the coordinates yourself...