It turns out that if the url ends with a "/" it doesn't work any longer. Something must have changed since this used to work before.

Hi, Since some days my macOS app doesn't work with the REST API. Nothing changed in the app. I'm just searching for subtitles like before and I get the web page xml back instead of the JSON answer??? https://rest.opensubtitles.org/search/query-alien/sublanguageid-swe/ sending in my "Playr"...