diff --git a/lib/core/option.py b/lib/core/option.py
index 8de8cc10f..218e7e7b5 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -1396,16 +1396,12 @@ def _setHTTPExtraHeaders():
                 raise SqlmapSyntaxException(errMsg)
 
     elif not conf.requestFile and len(conf.httpHeaders or []) < 2:
-        conf.httpHeaders.append((HTTP_HEADER.ACCEPT_LANGUAGE, "en-us,en;q=0.5"))
-        if not conf.charset:
-            conf.httpHeaders.append((HTTP_HEADER.ACCEPT_CHARSET, "ISO-8859-15,utf-8;q=0.7,*;q=0.7"))
-        else:
+        if conf.charset:
             conf.httpHeaders.append((HTTP_HEADER.ACCEPT_CHARSET, "%s;q=0.7,*;q=0.1" % conf.charset))
 
         # Invalidating any caching mechanism in between
-        # Reference: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
-        conf.httpHeaders.append((HTTP_HEADER.CACHE_CONTROL, "no-cache,no-store"))
-        conf.httpHeaders.append((HTTP_HEADER.PRAGMA, "no-cache"))
+        # Reference: http://stackoverflow.com/a/1383359
+        conf.httpHeaders.append((HTTP_HEADER.CACHE_CONTROL, "no-cache"))
 
 def _defaultHTTPUserAgent():
     """
@@ -1415,13 +1411,6 @@ def _defaultHTTPUserAgent():
 
     return "%s (%s)" % (VERSION_STRING, SITE)
 
-    # Firefox 3 running on Ubuntu 9.04 updated at April 2009
-    #return "Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.0.9) Gecko/2009042113 Ubuntu/9.04 (jaunty) Firefox/3.0.9"
-
-    # Internet Explorer 7.0 running on Windows 2003 Service Pack 2 english
-    # updated at March 2009
-    #return "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)"
-
 def _setHTTPUserAgent():
     """
     Set the HTTP User-Agent header.
diff --git a/lib/core/settings.py b/lib/core/settings.py
index e6f96da33..e8683b538 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import OS
 from lib.core.revision import getRevisionNumber
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.0.9.50"
+VERSION = "1.0.9.51"
 REVISION = getRevisionNumber()
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
@@ -133,7 +133,7 @@ UNION_STDEV_COEFF = 7
 TIME_DELAY_CANDIDATES = 3
 
 # Default value for HTTP Accept header
-HTTP_ACCEPT_HEADER_VALUE = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
+HTTP_ACCEPT_HEADER_VALUE = "*/*"
 
 # Default value for HTTP Accept-Encoding header
 HTTP_ACCEPT_ENCODING_HEADER_VALUE = "gzip,deflate"
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index 2fefeced6..ae11ffca5 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -39,13 +39,13 @@ e4aec2b11c1ad6039d0c3dbbfbc5eb1a  lib/core/exception.py
 cc9c82cfffd8ee9b25ba3af6284f057e  lib/core/__init__.py
 91c514013daa796e2cdd940389354eac  lib/core/log.py
 5b079749c50240602ea92637e268ed31  lib/core/optiondict.py
-74d826338a2cd66a4724d8486a648d93  lib/core/option.py
+c3bcfb12b2dc7f6eb23f46d020faf580  lib/core/option.py
 1e8948dddbd12def5c2af52530738059  lib/core/profiling.py
 e60456db5380840a586654344003d4e6  lib/core/readlineng.py
 5ef56abb8671c2ca6ceecb208258e360  lib/core/replication.py
 99a2b496b9d5b546b335653ca801153f  lib/core/revision.py
 7c15dd2777af4dac2c89cab6df17462e  lib/core/session.py
-d9678d7975815c56e3ec2e526e9ed7d7  lib/core/settings.py
+9652b7cb6777148034310c0e66b2e85a  lib/core/settings.py
 7af83e4f18cab6dff5e67840eb65be80  lib/core/shell.py
 23657cd7d924e3c6d225719865855827  lib/core/subprocessng.py
 c3ace7874a536d801f308cf1fd03df99  lib/core/target.py