javascript - Converting ISO-8859-1 XML to UTF-8 -

i'm receiving xml data api. data converted json on server , saved in mongo database.

the problem is, xml receive encoded in iso-8859-1 , uses scandinavian letters å, ä , ö. encoding not specified in response headers.

i able view xml in browser, special letters show fine, in request response, special letters show question mark in black box (�) in console , in mongodb.

in request, send "content-type": "application/xml; charset=utf-8" headers response still sent in iso-8859-1.

what options here? can somehow convert � right characters?

additional information

updated again:

response = http.call('get', 'http://peto-media.fi/tiedotteet/rss.xml', {     headers: {         "accept-charset": "utf-8"     } }); data = buffer.from(response.content, 'binary').tostring('binary');  console.log(data); 

sending content-type in get response doesn't make sense. header indicates media type of resource , server sends header in response get request. also, sent in put or post requests in order indicate media type of sent content.

you should use accept-charset header, tells server charset(s) client able understand:

accept-charset: utf-8 

also, reason of xml sent iso-8859-1 charset:

in versions of http/1.1, default charset (iso-8859-1) defined. no more case , each content type may have own default.

anyway, if api service you're using doesn't support accept-charset can convert encodings yourself, before storing db.

added:

converting response content utf8 tricky thing: meteor's http.call returns utf8 string, in response.content have iso-8859-1 string treated utf8 string.

you have use buffer convert back:

data = buffer.from(response.content, 'binary').tostring('binary'); 

i've tested myself url , works expected.