X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=libs%2Fweb%2Fluasrc%2Fhttp.lua;h=c5a85ea4d9f777187855549adabf0c18e199f32a;hp=6b73b9414cf0c129a1596ac4144b64d12fc529da;hb=9d85bd73e5562ae72715935187ce0d55c3009d24;hpb=ffd5c4ec656bd3f216c66b43587abcfdaf2b5c37

diff --git a/libs/web/luasrc/http.lua b/libs/web/luasrc/http.lua
index 6b73b9414..c5a85ea4d 100644
--- a/libs/web/luasrc/http.lua
+++ b/libs/web/luasrc/http.lua
@@ -192,14 +192,16 @@ end
 --- Set the mime type of following content data.
 -- @param mime	Mimetype of following content
 function prepare_content(mime)
-	if mime == "application/xhtml+xml" then
-		if not getenv("HTTP_ACCEPT") or
-		  not getenv("HTTP_ACCEPT"):find("application/xhtml+xml", nil, true) then
-			mime = "text/html; charset=UTF-8"
+	if not context.headers or not context.headers["content-type"] then
+		if mime == "application/xhtml+xml" then
+			if not getenv("HTTP_ACCEPT") or
+			  not getenv("HTTP_ACCEPT"):find("application/xhtml+xml", nil, true) then
+				mime = "text/html; charset=UTF-8"
+			end
+			header("Vary", "Accept")
 		end
-		header("Vary", "Accept")
+		header("Content-Type", mime)
 	end
-	header("Content-Type", mime)
 end
 
 --- Get the RAW HTTP input source