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open Js_of_ocaml
open Brr
let send
: mime_type:Jstr.t -> filename:Jstr.t -> Jstr.t -> unit
= fun ~mime_type ~filename content ->
let btoa = Jv.get Jv.global "btoa" in
let base64data = Jv.apply btoa
[| Jv.of_jstr content |] in
let mime = (Jv.Id.(of_jv @@ to_jv mime_type))
and base64 = (Jv.Id.(of_jv @@ to_jv base64data))
in
let data = (Js.string "data:")##concat_3 mime (Js.string ";base64,") base64 in
(* Create the link to download the the element, and simulate a click on it *)
let a = El.a
~at:At.[ href Jv.Id.(of_jv @@ to_jv data)
; v (Jstr.v "download") filename ]
[] in
El.click a
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