diff --git a/src/errors.py b/src/errors.py
index 41b17d6..1fbfd40 100644
--- a/src/errors.py
+++ b/src/errors.py
@@ -65,7 +65,10 @@ def __init__(self, level=DEFAULT, msg='', data=[]):
         httpcode   = self.get_code(level)
         headers    = {'Content-Type': 'application/json'}
         message    = self.get_message(level)
-        params     = web.input() if web.input() else web.data()
+        if web.ctx.env.get('REQUEST_METHOD', '') == 'GET':
+            params = web.input()
+        else:
+            params = web.data().decode('utf-8')
         output     = json.dumps(
             self.make_output(httpcode, message, msg, params, data))