diff --git a/lib/core/option.py b/lib/core/option.py
index 423871938..10e48022d 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -2254,9 +2254,6 @@ def _setTorSocksProxySettings():
     socks.wrapmodule(urllib2)
 
 def _checkWebSocket():
-    infoMsg = "checking for WebSocket"
-    logger.debug(infoMsg)
-
     if conf.url and (conf.url.startswith("ws:/") or conf.url.startswith("wss:/")):
         try:
             from websocket import ABNF
diff --git a/lib/techniques/error/use.py b/lib/techniques/error/use.py
index 04ce9cca5..cb7fb7f02 100644
--- a/lib/techniques/error/use.py
+++ b/lib/techniques/error/use.py
@@ -75,7 +75,7 @@ def _oneShotErrorUse(expression, field=None, chunkTest=False):
             testQuery = "SELECT %s('%s',%d)" % ("REPEAT" if Backend.isDbms(DBMS.MYSQL) else "REPLICATE", testChar, current)
             result = unArrayizeValue(_oneShotErrorUse(testQuery, chunkTest=True))
 
-            if result and testChar in result:
+            if (result or "").startswith(testChar):
                 if result == testChar * current:
                     kb.errorChunkLength = current
                     break