diff --git a/swshop/w.lua b/swshop/w.lua
index d157992..9b25fe7 100644
--- a/swshop/w.lua
+++ b/swshop/w.lua
@@ -71,14 +71,14 @@ function init(jua)
 	jua = jua
 	if async then
 		jua.on("websocket_success", function(event, url, handle)
-			local id = findID(url)
+			local success, id = pcall(findID,url)
 			if id and callbackRegistry[id] and callbackRegistry[id].success then
 				callbackRegistry[id].success(id, handle)
 			end
 		end)
 
 		jua.on("websocket_failure", function(event, url)
-			local id = findID(url)
+			local success, id = pcall(findID,url)
 			if id and callbackRegistry[id] and callbackRegistry[id].failure then
 				callbackRegistry[id].failure(id)
 			end
@@ -86,14 +86,14 @@ function init(jua)
 		end)
 
 		jua.on("websocket_message", function(event, url, data)
-			local id = findID(url)
+			local success, id = pcall(findID,url)
 			if id and callbackRegistry[id] and callbackRegistry[id].message then
 				callbackRegistry[id].message(id, data)
 			end
 		end)
 
 		jua.on("websocket_closed", function(event, url)
-			local id = findID(url)
+			local success, id = pcall(findID,url)
 			if id and callbackRegistry[id] and callbackRegistry[id].closed then
 				callbackRegistry[id].closed(id)
 			end
@@ -132,4 +132,4 @@ end
 return {
 	open = open,
 	init = init
-}
\ No newline at end of file
+}