From c1dd65c01a7c94764d8a4c255541136b95e643b7 Mon Sep 17 00:00:00 2001
From: Yuriy Glukhov <yuriy.glukhov@gmail.com>
Date: Sat, 27 Aug 2016 18:10:13 +0300
Subject: [PATCH] Reset framePtr on unhabdled exception. Dont reset on
 getStackTrace.

---
 lib/system/jssys.nim | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/system/jssys.nim b/lib/system/jssys.nim
index 0fbf4944a..abec44bbb 100644
--- a/lib/system/jssys.nim
+++ b/lib/system/jssys.nim
@@ -86,9 +86,6 @@ proc auxWriteStackTrace(f: PCallFrame): string =
 proc rawWriteStackTrace(): string =
   if framePtr != nil:
     result = "Traceback (most recent call last)\n" & auxWriteStackTrace(framePtr)
-    framePtr = nil
-  elif lastJSError != nil:
-    result = $lastJSError.stack
   else:
     result = "No stack traceback available\n"
 
@@ -108,6 +105,7 @@ proc unhandledException(e: ref Exception) {.
   when NimStackTrace:
     add(buf, rawWriteStackTrace())
   let cbuf : cstring = buf
+  framePtr = nil
   {.emit: """
   if (typeof(Error) !== "undefined") {
     throw new Error(`cbuf`);