"countrycodes" option broken with array

[immanuel-h]

Config: countrycodes: ["at", "de"] (as per doc, array of iso country codes)

Expected: URL generated as countrycodes=at,de

Actual: Url generated as 0=at&1=de

Source of the problem: toQueryString method

Minimal test case

toQueryString({countrycodes:["at", "de"]})
> '0=at&1=de'

Workaround: using a comma-separated string instead of an array (i.e. countrycodes:"at,de")

If this is intended behavior the docs should be updated.

[Dominique92]

The nominatim doc specifies string separated with commas countrycodes: 'US,FR'

What doc should be updated ?

[mtmail]

countrycodes=at,de is correct. Uppercase works but inside the Nominatim database the codes are stored lowercase so we usually write them lowercase in documentation.