diff --git a/src/page-file.rkt b/src/page-file.rkt
index 472652e..7fc9bd1 100644
--- a/src/page-file.rkt
+++ b/src/page-file.rkt
@@ -31,17 +31,17 @@
 (define (url-content-type url)
   (log-outgoing url)
   (define dest-res (easy:head url #:timeouts timeouts))
-  (easy:response-headers-ref dest-res 'Content-Type))
+  (easy:response-headers-ref dest-res 'content-type))
 
 (define (get-media-html url content-type)
   (cond
     [(eq? content-type #f) `""]
-    [(regexp-match? #rx"^image/" content-type)
-      `(img (@ (src ,(u-proxy-url url))))]
-    [(regexp-match? #rx"^audio/|^application/ogg$" content-type)
-      `(audio (@ (src ,(u-proxy-url url)) (controls)))]
-    [(regexp-match? #rx"^video/" content-type)
-      `(video (@ (src ,(u-proxy-url url)) (controls)))]
+    [(regexp-match? #rx"^(?i)image/" content-type)
+      `(img (@ (src ,url)))]
+    [(regexp-match? #rx"^(?i)audio/|^(?i)application/ogg(;|$)" content-type)
+      `(audio (@ (src ,url) (controls)))]
+    [(regexp-match? #rx"^(?i)video/" content-type)
+      `(video (@ (src ,url) (controls)))]
     [else `""]))
 
 (define (generate-results-page