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Add types to Link header

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Cadence Ember 2022-11-11 23:33:56 +13:00
parent cea9d2082b
commit 565d0a439a
Signed by untrusted user: cadence
GPG key ID: BC1C2C61CF521B17
1 changed files with 12 additions and 8 deletions
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20
src/static-data.rkt
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@ -21,13 +21,17 @@
(build-path path-static path-or-filename)))) (build-path path-static path-or-filename))))
(format "/static/~a?t=~a" (file-name-from-path the-path) (hash-ref static-data the-path))) (format "/static/~a?t=~a" (file-name-from-path the-path) (hash-ref static-data the-path)))
; https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types/preload
(: link-header String) (: link-header String)
(define link-header (define link-header
(let* ([with-t '("main.css")] (let* ([with-t '(("main.css" "as=style"))]
[with-t-full (map get-static-url with-t)] [without-t '(("preact.js" "as=script")
[without-t '("preact.js" "source-sans-pro-v21-vietnamese_latin-ext_latin_greek-ext_greek_cyrillic-ext_cyrillic-regular.woff2")] ("source-sans-pro-v21-vietnamese_latin-ext_latin_greek-ext_greek_cyrillic-ext_cyrillic-regular.woff2" "as=font" "crossorigin" "type=font/woff2"))]
[without-t-full (map (λ (path) (format "/static/~a" path)) without-t)]) [with-t-full (map (λ ([path : (Listof String)]) (cons (get-static-url (car path)) (cdr path))) with-t)]
(string-join [without-t-full (map (λ ([path : (Listof String)]) (cons (format "/static/~a" (car path)) (cdr path))) without-t)]
(for/list : (Listof String) ([full-path : String (append with-t-full without-t-full)]) [all (append with-t-full without-t-full)]
(format "<~a>; rel=\"preload\"" full-path)) [header-parts
", "))) (for/list : (Listof String) ([full-path all])
(define attributes (map (λ ([s : String]) (format "; ~a" s)) (cdr full-path)))
(format "<~a>; rel=preload~a" (car full-path) (string-join attributes "")))])
(string-join header-parts ", ")))