diff --git a/src/taoensso/timbre.cljc b/src/taoensso/timbre.cljc
index 03568fc5..a8a9b245 100644
--- a/src/taoensso/timbre.cljc
+++ b/src/taoensso/timbre.cljc
@@ -928,11 +928,11 @@
   ([err     ] (stacktrace err nil))
   ([err opts]
    #?(:cljs
-      ;; TODO Better alternatives?
-      (str
-        err ; Stringified error incl. (.-message err)
-        (when-let [s (.-stack err)]
-          (str enc/system-newline s)))
+      (let [nl enc/system-newline]
+       (str
+         (.-stack err) ; Includes `ex-message`
+         (when-let [d (ex-data  err)] (str nl "ex-data" enc/system-newline "    " (pr-str d)))
+         (when-let [c (ex-cause err)] (str nl "caused by - " (stacktrace c opts)))))
 
       :clj
       (let [stacktrace-fonts ; {:stacktrace-fonts nil->{}}