diff --git a/browser.js b/browser.js
index 141954d..2ca0d90 100644
--- a/browser.js
+++ b/browser.js
@@ -1,8 +1,14 @@
 var log = require('./ulog')
 
-var qs = location.search.substring(1),
-		args = qs && qs.split('&'),
-		lvl, dbg, i, m
+var qs
+try {
+  qs = location.search.substring(1)
+} catch(e) {
+  qs = '';
+}
+
+var args = qs && qs.split('&'),
+lvl, dbg, i, m
 
 try {
 	lvl = localStorage.getItem('log')
diff --git a/package-lock.json b/package-lock.json
index 8335532..8bee19b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2155,7 +2155,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2176,12 +2177,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2196,17 +2199,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2323,7 +2329,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2335,6 +2342,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2349,6 +2357,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -2356,12 +2365,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -2380,6 +2391,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2460,7 +2472,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2472,6 +2485,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2557,7 +2571,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2593,6 +2608,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2612,6 +2628,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2655,12 +2672,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
diff --git a/ulog.min.js b/ulog.min.js
index 195b2b5..80f305c 100644
--- a/ulog.min.js
+++ b/ulog.min.js
@@ -1 +1 @@
-!function(e,n,o){"function"==typeof define&&define.amd?define(n,[],o):e[n]=o()}(this,"ulog",function(){"use strict";function log(e){return e?mods[e]||(mods[e]=extend(create(e),log)):extend(log)}log.formats=[],log.extends=[],log.enable=function(e){var n,o=(e||"").split(/[\s,]+/);for(n=0;n<o.length;n++)o[n]&&("-"===(e=o[n].replace(/\*/g,".*?"))[0]?skipMods.push(new RegExp("^"+e.substr(1)+"$")):dbgMods.push(new RegExp("^"+e+"$")));for(n in mods)patch(mods[n])},log.enabled=function(e){var n;for(n=0;n<skipMods.length;n++)if(skipMods[n].test(e))return;for(n=0;n<dbgMods.length;n++)if(dbgMods[n].test(e))return!0},log.disable=log.enable.bind(log,"");var LVL={ERROR:1,WARN:2,INFO:3,LOG:4,DEBUG:5,TRACE:6},names={error:1,warn:2,info:3,log:4,verbose:4,debug:5,trace:6,silly:6,dir:0,table:0,time:0,timeEnd:0,assert:0},mods={},dbgMods=[],skipMods=[];function create(n,r){return eval("r = {'"+n+"': function() {var a = [].slice.call(arguments), m = a.length > 1 && names[a[0]] ? a.shift() : 'debug'; for (var i=0; i<log.formats.length; i++) log.formats[i](mods[n],m,a); return mods[n][m].apply(mods[n], a)}}[n]"),r.name?r:Object.defineProperty(r,"name",{get:function(){return n}})}function extend(t,r,l){if(!t.log){for(var e in t.NONE=0,t.ulog={version:"2.0.0-beta.6"},LVL)t[e]=LVL[e];Object.defineProperty(t,"level",{get:function(){return void 0!==l?l:r&&r.level},set:function(e){if(void 0===e&&r)l=void 0;else{var n=e&&(Number(e)!=Number(e)?t[e.toUpperCase()]:Number(e));0<=n&&n<=6&&(l=n)}if(patch(t),!r)for(var o in mods)patch(mods[o])}}),patch(t);for(var n=0;n<log.extends.length;n++)log.extends[n](t,r);return t}}function patch(e){var n=Math.max(e.name&&log.enabled(e.name)&&e.DEBUG||e.level,e.level);for(var o in names)e[o]=n<names[o]?nop:bnd(o)||"function"==typeof print&&print||nop}function bnd(e,n){return(n=log.con())&&(n[e]||n.log).bind(n)}function nop(){}module.exports=log;var qs=location.search.substring(1),args=qs&&qs.split("&"),lvl,dbg,i,m;try{lvl=localStorage.getItem("log"),dbg=localStorage.getItem("debug")}catch(e){}for(i=0;m=args&&args[i]&&args[i].split("=");i++)"log"==m[0]&&(lvl=m[1]),"debug"==m[0]&&(dbg=m[1]);return log.con=function(){return window.console},dbg&&log.enable(dbg),log(),log.level=lvl||log.WARN,log});
\ No newline at end of file
+!function(e,n,o){"function"==typeof define&&define.amd?define(n,[],o):e[n]=o()}(this,"ulog",function(){"use strict";function log(e){return e?mods[e]||(mods[e]=extend(create(e),log)):extend(log)}log.formats=[],log.extends=[],log.enable=function(e){var n,o=(e||"").split(/[\s,]+/);for(n=0;n<o.length;n++)o[n]&&("-"===(e=o[n].replace(/\*/g,".*?"))[0]?skipMods.push(new RegExp("^"+e.substr(1)+"$")):dbgMods.push(new RegExp("^"+e+"$")));for(n in mods)patch(mods[n])},log.enabled=function(e){var n;for(n=0;n<skipMods.length;n++)if(skipMods[n].test(e))return;for(n=0;n<dbgMods.length;n++)if(dbgMods[n].test(e))return!0},log.disable=log.enable.bind(log,"");var LVL={ERROR:1,WARN:2,INFO:3,LOG:4,DEBUG:5,TRACE:6},names={error:1,warn:2,info:3,log:4,verbose:4,debug:5,trace:6,silly:6,dir:0,table:0,time:0,timeEnd:0,assert:0},mods={},dbgMods=[],skipMods=[],qs;function create(n,r){return eval("r = {'"+n+"': function() {var a = [].slice.call(arguments), m = a.length > 1 && names[a[0]] ? a.shift() : 'debug'; for (var i=0; i<log.formats.length; i++) log.formats[i](mods[n],m,a); return mods[n][m].apply(mods[n], a)}}[n]"),r.name?r:Object.defineProperty(r,"name",{get:function(){return n}})}function extend(t,r,l){if(!t.log){for(var e in t.NONE=0,t.ulog={version:"2.0.0-beta.6"},LVL)t[e]=LVL[e];Object.defineProperty(t,"level",{get:function(){return void 0!==l?l:r&&r.level},set:function(e){if(void 0===e&&r)l=void 0;else{var n=e&&(Number(e)!=Number(e)?t[e.toUpperCase()]:Number(e));0<=n&&n<=6&&(l=n)}if(patch(t),!r)for(var o in mods)patch(mods[o])}}),patch(t);for(var n=0;n<log.extends.length;n++)log.extends[n](t,r);return t}}function patch(e){var n=Math.max(e.name&&log.enabled(e.name)&&e.DEBUG||e.level,e.level);for(var o in names)e[o]=n<names[o]?nop:bnd(o)||"function"==typeof print&&print||nop}function bnd(e,n){return(n=log.con())&&(n[e]||n.log).bind(n)}function nop(){}module.exports=log;try{qs=location.search.substring(1)}catch(e){qs=""}var args=qs&&qs.split("&"),lvl,dbg,i,m;try{lvl=localStorage.getItem("log"),dbg=localStorage.getItem("debug")}catch(e){}for(i=0;m=args&&args[i]&&args[i].split("=");i++)"log"==m[0]&&(lvl=m[1]),"debug"==m[0]&&(dbg=m[1]);return log.con=function(){return window.console},dbg&&log.enable(dbg),log(),log.level=lvl||log.WARN,log});
\ No newline at end of file
diff --git a/ulog.umd.js b/ulog.umd.js
index 4029d53..3bfa216 100644
--- a/ulog.umd.js
+++ b/ulog.umd.js
@@ -78,9 +78,15 @@ function nop(){}
 module.exports = log
 
 
-var qs = location.search.substring(1),
-		args = qs && qs.split('&'),
-		lvl, dbg, i, m
+var qs
+try {
+  qs = location.search.substring(1)
+} catch(e) {
+  qs = '';
+}
+
+var args = qs && qs.split('&'),
+lvl, dbg, i, m
 
 try {
 	lvl = localStorage.getItem('log')