html - HTTP response headers: multiple Link values -


i'm working on seo rails app.

the website localized, , i'm following this google article add hreflang alternate links pages.

the html links in <head> ok.

i'm having troubles response headers.

i understand i'm supposed provide values each alternative version of page, i'm not sure how set multiple values.

i tried pass them comma separated list. browsers seem receive correctly, since individual values contain semi-colons looks wrong.

is there reference on it? example webpage known implement correctly help.

i have no experience this, according examples in same rfc separated comma:

link: </thebook/chapter2>;       rel="previous"; title*=utf-8'de'letztes%20kapitel,       </thebook/chapter4>;       rel="next"; title*=utf-8'de'n%c3%a4chstes%20kapitel

it’s indirectly confirmed 5.3 (emphasis mine):

note extension relation types required absolute uris in link headers, , must quoted if contain semicolon (";") or comma (",") (as these characters used delimiters in header itself).


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