diff --git a/racket-webview.rkt b/racket-webview.rkt
index 827c936..47c6207 100644
--- a/racket-webview.rkt
+++ b/racket-webview.rkt
@@ -763,14 +763,12 @@
 (define/contract (webview-call-js wv js)
   (-> wv-win? string? (or/c string? list? boolean? hash? symbol? number?))
   (let ((result (rkt-webview-call-js (wv-win-handle wv) js)))
-    (displayln result)
     (if (webview-call-js-result? result)
         (if (eq? (car result) 'oke)
             (hash-ref (fromJson (cadr result)) 'result #f)
-            (error
-             (format "Error calling javascript. Message: ~a"
-                     (hash-ref (fromJson (cadr result)) 'exn result)))
-            )
+            (begin
+              (err-webview "Error calling javascript: ~a" result)
+              #f))
         (error
          (format "Wrong result from webview-call-js: ~a" result))
         )