diff --git a/lib/writable_streambuffer.js b/lib/writable_streambuffer.js
index dd0cc0e..eaa4368 100644
--- a/lib/writable_streambuffer.js
+++ b/lib/writable_streambuffer.js
@@ -25,7 +25,7 @@ var WritableStreamBuffer = module.exports = function(opts) {
   };
 
   this.getContents = function(length) {
-    if(!size) return false;
+    if(!size) return Buffer.from('');
 
     var data = new Buffer(Math.min(length || size, size));
     buffer.copy(data, 0, 0, data.length);
@@ -39,7 +39,7 @@ var WritableStreamBuffer = module.exports = function(opts) {
   };
 
   this.getContentsAsString = function(encoding, length) {
-    if(!size) return false;
+    if(!size) return '';
 
     var data = buffer.toString(encoding || 'utf8', 0, Math.min(length || size, size));
     var dataLength = Buffer.byteLength(data);
diff --git a/package-lock.json b/package-lock.json
index e26d5f1..3459280 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,9 +16,9 @@
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
       "requires": {
-        "kind-of": "3.2.2",
-        "longest": "1.0.1",
-        "repeat-string": "1.6.1"
+        "kind-of": "^3.0.2",
+        "longest": "^1.0.1",
+        "repeat-string": "^1.5.2"
       }
     },
     "amdefine": {
@@ -51,7 +51,7 @@
       "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
       "dev": true,
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
       }
     },
     "array-union": {
@@ -60,7 +60,7 @@
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
       "dev": true,
       "requires": {
-        "array-uniq": "1.0.3"
+        "array-uniq": "^1.0.1"
       }
     },
     "array-uniq": {
@@ -99,7 +99,7 @@
       "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
       "dev": true,
       "requires": {
-        "balanced-match": "1.0.0",
+        "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
       }
     },
@@ -117,8 +117,8 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "align-text": "0.1.4",
-        "lazy-cache": "1.0.4"
+        "align-text": "^0.1.3",
+        "lazy-cache": "^1.0.3"
       }
     },
     "chai": {
@@ -127,9 +127,9 @@
       "integrity": "sha1-TQJjewZ/6Vi9v906QOxW/vc3Mkc=",
       "dev": true,
       "requires": {
-        "assertion-error": "1.0.2",
-        "deep-eql": "0.1.3",
-        "type-detect": "1.0.0"
+        "assertion-error": "^1.0.1",
+        "deep-eql": "^0.1.3",
+        "type-detect": "^1.0.0"
       }
     },
     "chalk": {
@@ -138,11 +138,11 @@
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
-        "ansi-styles": "2.2.1",
-        "escape-string-regexp": "1.0.5",
-        "has-ansi": "2.0.0",
-        "strip-ansi": "3.0.1",
-        "supports-color": "2.0.0"
+        "ansi-styles": "^2.2.1",
+        "escape-string-regexp": "^1.0.2",
+        "has-ansi": "^2.0.0",
+        "strip-ansi": "^3.0.0",
+        "supports-color": "^2.0.0"
       }
     },
     "circular-json": {
@@ -157,7 +157,7 @@
       "integrity": "sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=",
       "dev": true,
       "requires": {
-        "restore-cursor": "1.0.1"
+        "restore-cursor": "^1.0.1"
       }
     },
     "cli-width": {
@@ -173,8 +173,8 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "center-align": "0.1.3",
-        "right-align": "0.1.3",
+        "center-align": "^0.1.1",
+        "right-align": "^0.1.1",
         "wordwrap": "0.0.2"
       },
       "dependencies": {
@@ -211,9 +211,9 @@
       "integrity": "sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=",
       "dev": true,
       "requires": {
-        "inherits": "2.0.3",
-        "readable-stream": "2.3.3",
-        "typedarray": "0.0.6"
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.2.2",
+        "typedarray": "^0.0.6"
       }
     },
     "core-util-is": {
@@ -228,7 +228,7 @@
       "integrity": "sha1-dUu1v+VUUdpppYuU1F9MWwRi1Y8=",
       "dev": true,
       "requires": {
-        "es5-ext": "0.10.30"
+        "es5-ext": "^0.10.9"
       }
     },
     "debug": {
@@ -276,13 +276,13 @@
       "integrity": "sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=",
       "dev": true,
       "requires": {
-        "globby": "5.0.0",
-        "is-path-cwd": "1.0.0",
-        "is-path-in-cwd": "1.0.0",
-        "object-assign": "4.1.1",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1",
-        "rimraf": "2.6.1"
+        "globby": "^5.0.0",
+        "is-path-cwd": "^1.0.0",
+        "is-path-in-cwd": "^1.0.0",
+        "object-assign": "^4.0.1",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0",
+        "rimraf": "^2.2.8"
       }
     },
     "diff": {
@@ -297,7 +297,7 @@
       "integrity": "sha1-fLhgNZujvpDgQLJrcpzkv6ZUxSM=",
       "dev": true,
       "requires": {
-        "esutils": "1.1.6",
+        "esutils": "^1.1.6",
         "isarray": "0.0.1"
       },
       "dependencies": {
@@ -321,8 +321,8 @@
       "integrity": "sha1-cUGhaDZpfbq/qq7uQUlc4p9SyTk=",
       "dev": true,
       "requires": {
-        "es6-iterator": "2.0.1",
-        "es6-symbol": "3.1.1"
+        "es6-iterator": "2",
+        "es6-symbol": "~3.1"
       }
     },
     "es6-iterator": {
@@ -331,9 +331,9 @@
       "integrity": "sha1-jjGcnwRTv1ddN0lAplWSDlnKVRI=",
       "dev": true,
       "requires": {
-        "d": "1.0.0",
-        "es5-ext": "0.10.30",
-        "es6-symbol": "3.1.1"
+        "d": "1",
+        "es5-ext": "^0.10.14",
+        "es6-symbol": "^3.1"
       }
     },
     "es6-map": {
@@ -342,12 +342,12 @@
       "integrity": "sha1-kTbgUD3MBqMBaQ8LsU/042TpSfA=",
       "dev": true,
       "requires": {
-        "d": "1.0.0",
-        "es5-ext": "0.10.30",
-        "es6-iterator": "2.0.1",
-        "es6-set": "0.1.5",
-        "es6-symbol": "3.1.1",
-        "event-emitter": "0.3.5"
+        "d": "1",
+        "es5-ext": "~0.10.14",
+        "es6-iterator": "~2.0.1",
+        "es6-set": "~0.1.5",
+        "es6-symbol": "~3.1.1",
+        "event-emitter": "~0.3.5"
       }
     },
     "es6-set": {
@@ -356,11 +356,11 @@
       "integrity": "sha1-0rPsXU2ADO2BjbU40ol02wpzzLE=",
       "dev": true,
       "requires": {
-        "d": "1.0.0",
-        "es5-ext": "0.10.30",
-        "es6-iterator": "2.0.1",
+        "d": "1",
+        "es5-ext": "~0.10.14",
+        "es6-iterator": "~2.0.1",
         "es6-symbol": "3.1.1",
-        "event-emitter": "0.3.5"
+        "event-emitter": "~0.3.5"
       }
     },
     "es6-symbol": {
@@ -369,8 +369,8 @@
       "integrity": "sha1-vwDvT9q2uhtG7Le2KbTH7VcVzHc=",
       "dev": true,
       "requires": {
-        "d": "1.0.0",
-        "es5-ext": "0.10.30"
+        "d": "1",
+        "es5-ext": "~0.10.14"
       }
     },
     "es6-weak-map": {
@@ -379,10 +379,10 @@
       "integrity": "sha1-XjqzIlH/0VOKH45f+hNXdy+S2W8=",
       "dev": true,
       "requires": {
-        "d": "1.0.0",
-        "es5-ext": "0.10.30",
-        "es6-iterator": "2.0.1",
-        "es6-symbol": "3.1.1"
+        "d": "1",
+        "es5-ext": "^0.10.14",
+        "es6-iterator": "^2.0.1",
+        "es6-symbol": "^3.1.1"
       }
     },
     "escape-string-regexp": {
@@ -397,11 +397,11 @@
       "integrity": "sha1-WltTr0aTEQvrsIZ6o0MN07cKEBg=",
       "dev": true,
       "requires": {
-        "esprima": "2.7.3",
-        "estraverse": "1.9.3",
-        "esutils": "2.0.2",
-        "optionator": "0.8.2",
-        "source-map": "0.2.0"
+        "esprima": "^2.7.1",
+        "estraverse": "^1.9.1",
+        "esutils": "^2.0.2",
+        "optionator": "^0.8.1",
+        "source-map": "~0.2.0"
       },
       "dependencies": {
         "esprima": {
@@ -428,8 +428,8 @@
           "integrity": "sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=",
           "dev": true,
           "requires": {
-            "prelude-ls": "1.1.2",
-            "type-check": "0.3.2"
+            "prelude-ls": "~1.1.2",
+            "type-check": "~0.3.2"
           }
         },
         "optionator": {
@@ -438,12 +438,12 @@
           "integrity": "sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=",
           "dev": true,
           "requires": {
-            "deep-is": "0.1.3",
-            "fast-levenshtein": "2.0.6",
-            "levn": "0.3.0",
-            "prelude-ls": "1.1.2",
-            "type-check": "0.3.2",
-            "wordwrap": "1.0.0"
+            "deep-is": "~0.1.3",
+            "fast-levenshtein": "~2.0.4",
+            "levn": "~0.3.0",
+            "prelude-ls": "~1.1.2",
+            "type-check": "~0.3.2",
+            "wordwrap": "~1.0.0"
           }
         },
         "source-map": {
@@ -453,7 +453,7 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "amdefine": "1.0.1"
+            "amdefine": ">=0.0.4"
           }
         },
         "wordwrap": {
@@ -470,10 +470,10 @@
       "integrity": "sha1-4Bl16BJ4GhY6ba392AOY3GTIicM=",
       "dev": true,
       "requires": {
-        "es6-map": "0.1.5",
-        "es6-weak-map": "2.0.2",
-        "esrecurse": "4.2.0",
-        "estraverse": "4.2.0"
+        "es6-map": "^0.1.3",
+        "es6-weak-map": "^2.0.1",
+        "esrecurse": "^4.1.0",
+        "estraverse": "^4.1.1"
       }
     },
     "eslint": {
@@ -482,39 +482,39 @@
       "integrity": "sha1-+xmpGxPBWAgrvKKUsX2Xm8g1Ogo=",
       "dev": true,
       "requires": {
-        "chalk": "1.1.3",
-        "concat-stream": "1.6.0",
-        "debug": "2.6.8",
-        "doctrine": "0.7.2",
-        "escape-string-regexp": "1.0.5",
-        "escope": "3.6.0",
-        "espree": "2.2.5",
-        "estraverse": "4.2.0",
-        "estraverse-fb": "1.3.2",
-        "esutils": "2.0.2",
-        "file-entry-cache": "1.3.1",
-        "glob": "5.0.15",
-        "globals": "8.18.0",
-        "handlebars": "4.0.10",
-        "inquirer": "0.11.4",
-        "is-my-json-valid": "2.16.1",
-        "is-resolvable": "1.0.0",
+        "chalk": "^1.0.0",
+        "concat-stream": "^1.4.6",
+        "debug": "^2.1.1",
+        "doctrine": "^0.7.1",
+        "escape-string-regexp": "^1.0.2",
+        "escope": "^3.3.0",
+        "espree": "^2.2.4",
+        "estraverse": "^4.1.1",
+        "estraverse-fb": "^1.3.1",
+        "esutils": "^2.0.2",
+        "file-entry-cache": "^1.1.1",
+        "glob": "^5.0.14",
+        "globals": "^8.11.0",
+        "handlebars": "^4.0.0",
+        "inquirer": "^0.11.0",
+        "is-my-json-valid": "^2.10.0",
+        "is-resolvable": "^1.0.0",
         "js-yaml": "3.4.5",
-        "json-stable-stringify": "1.0.1",
-        "lodash.clonedeep": "3.0.2",
-        "lodash.merge": "3.3.2",
-        "lodash.omit": "3.1.0",
-        "minimatch": "3.0.4",
-        "mkdirp": "0.5.1",
-        "object-assign": "4.1.1",
-        "optionator": "0.6.0",
-        "path-is-absolute": "1.0.1",
-        "path-is-inside": "1.0.2",
-        "shelljs": "0.5.3",
-        "strip-json-comments": "1.0.4",
-        "text-table": "0.2.0",
-        "user-home": "2.0.0",
-        "xml-escape": "1.0.0"
+        "json-stable-stringify": "^1.0.0",
+        "lodash.clonedeep": "^3.0.1",
+        "lodash.merge": "^3.3.2",
+        "lodash.omit": "^3.1.0",
+        "minimatch": "^3.0.0",
+        "mkdirp": "^0.5.0",
+        "object-assign": "^4.0.1",
+        "optionator": "^0.6.0",
+        "path-is-absolute": "^1.0.0",
+        "path-is-inside": "^1.0.1",
+        "shelljs": "^0.5.3",
+        "strip-json-comments": "~1.0.1",
+        "text-table": "~0.2.0",
+        "user-home": "^2.0.0",
+        "xml-escape": "~1.0.0"
       }
     },
     "espree": {
@@ -529,8 +529,8 @@
       "integrity": "sha1-+pVo2Y04I/mkHZHpAtyrnqblsWM=",
       "dev": true,
       "requires": {
-        "estraverse": "4.2.0",
-        "object-assign": "4.1.1"
+        "estraverse": "^4.1.0",
+        "object-assign": "^4.0.1"
       }
     },
     "estraverse": {
@@ -557,8 +557,8 @@
       "integrity": "sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=",
       "dev": true,
       "requires": {
-        "d": "1.0.0",
-        "es5-ext": "0.10.30"
+        "d": "1",
+        "es5-ext": "~0.10.14"
       }
     },
     "exit-hook": {
@@ -579,8 +579,8 @@
       "integrity": "sha1-y+Hjr/zxzUS4DK3+0o3Hk6lwHS4=",
       "dev": true,
       "requires": {
-        "escape-string-regexp": "1.0.5",
-        "object-assign": "4.1.1"
+        "escape-string-regexp": "^1.0.5",
+        "object-assign": "^4.1.0"
       }
     },
     "file-entry-cache": {
@@ -589,8 +589,8 @@
       "integrity": "sha1-RMYepgeuS+nBQC9B9EJwy/4zT/g=",
       "dev": true,
       "requires": {
-        "flat-cache": "1.2.2",
-        "object-assign": "4.1.1"
+        "flat-cache": "^1.2.1",
+        "object-assign": "^4.0.1"
       }
     },
     "flat-cache": {
@@ -599,10 +599,10 @@
       "integrity": "sha1-+oZxTnLCHbiGAXYezy9VXRq8a5Y=",
       "dev": true,
       "requires": {
-        "circular-json": "0.3.3",
-        "del": "2.2.2",
-        "graceful-fs": "4.1.11",
-        "write": "0.2.1"
+        "circular-json": "^0.3.1",
+        "del": "^2.0.2",
+        "graceful-fs": "^4.1.2",
+        "write": "^0.2.1"
       }
     },
     "fs.realpath": {
@@ -623,7 +623,7 @@
       "integrity": "sha1-nA4cQDCM6AT0eDYYuTf6iPmdUNA=",
       "dev": true,
       "requires": {
-        "is-property": "1.0.2"
+        "is-property": "^1.0.0"
       }
     },
     "glob": {
@@ -632,11 +632,11 @@
       "integrity": "sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=",
       "dev": true,
       "requires": {
-        "inflight": "1.0.6",
-        "inherits": "2.0.3",
-        "minimatch": "3.0.4",
-        "once": "1.4.0",
-        "path-is-absolute": "1.0.1"
+        "inflight": "^1.0.4",
+        "inherits": "2",
+        "minimatch": "2 || 3",
+        "once": "^1.3.0",
+        "path-is-absolute": "^1.0.0"
       }
     },
     "globals": {
@@ -651,12 +651,12 @@
       "integrity": "sha1-69hGZ8oNuzMLmbz8aOrCvFQ3Dg0=",
       "dev": true,
       "requires": {
-        "array-union": "1.0.2",
-        "arrify": "1.0.1",
-        "glob": "7.1.2",
-        "object-assign": "4.1.1",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1"
+        "array-union": "^1.0.1",
+        "arrify": "^1.0.0",
+        "glob": "^7.0.3",
+        "object-assign": "^4.0.1",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0"
       },
       "dependencies": {
         "glob": {
@@ -665,12 +665,12 @@
           "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
           "dev": true,
           "requires": {
-            "fs.realpath": "1.0.0",
-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
         }
       }
@@ -693,10 +693,10 @@
       "integrity": "sha1-PTDHGLCaPZbyPqTMH0A8TTup/08=",
       "dev": true,
       "requires": {
-        "async": "1.5.2",
-        "optimist": "0.6.1",
-        "source-map": "0.4.4",
-        "uglify-js": "2.8.29"
+        "async": "^1.4.0",
+        "optimist": "^0.6.1",
+        "source-map": "^0.4.4",
+        "uglify-js": "^2.6"
       }
     },
     "has-ansi": {
@@ -705,7 +705,7 @@
       "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
       "dev": true,
       "requires": {
-        "ansi-regex": "2.1.1"
+        "ansi-regex": "^2.0.0"
       }
     },
     "has-flag": {
@@ -720,8 +720,8 @@
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
       "dev": true,
       "requires": {
-        "once": "1.4.0",
-        "wrappy": "1.0.2"
+        "once": "^1.3.0",
+        "wrappy": "1"
       }
     },
     "inherits": {
@@ -736,19 +736,19 @@
       "integrity": "sha1-geM3ToNhvq/y2XAWIG01nQsy+k0=",
       "dev": true,
       "requires": {
-        "ansi-escapes": "1.4.0",
-        "ansi-regex": "2.1.1",
-        "chalk": "1.1.3",
-        "cli-cursor": "1.0.2",
-        "cli-width": "1.1.1",
-        "figures": "1.7.0",
-        "lodash": "3.10.1",
-        "readline2": "1.0.1",
-        "run-async": "0.1.0",
-        "rx-lite": "3.1.2",
-        "string-width": "1.0.2",
-        "strip-ansi": "3.0.1",
-        "through": "2.3.8"
+        "ansi-escapes": "^1.1.0",
+        "ansi-regex": "^2.0.0",
+        "chalk": "^1.0.0",
+        "cli-cursor": "^1.0.1",
+        "cli-width": "^1.0.1",
+        "figures": "^1.3.5",
+        "lodash": "^3.3.1",
+        "readline2": "^1.0.1",
+        "run-async": "^0.1.0",
+        "rx-lite": "^3.1.2",
+        "string-width": "^1.0.1",
+        "strip-ansi": "^3.0.0",
+        "through": "^2.3.6"
       }
     },
     "is-buffer": {
@@ -763,7 +763,7 @@
       "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
       "dev": true,
       "requires": {
-        "number-is-nan": "1.0.1"
+        "number-is-nan": "^1.0.0"
       }
     },
     "is-my-json-valid": {
@@ -772,10 +772,10 @@
       "integrity": "sha512-ochPsqWS1WXj8ZnMIV0vnNXooaMhp7cyL4FMSIPKTtnV0Ha/T19G2b9kkhcNsabV9bxYkze7/aLZJb/bYuFduQ==",
       "dev": true,
       "requires": {
-        "generate-function": "2.0.0",
-        "generate-object-property": "1.2.0",
-        "jsonpointer": "4.0.1",
-        "xtend": "4.0.1"
+        "generate-function": "^2.0.0",
+        "generate-object-property": "^1.1.0",
+        "jsonpointer": "^4.0.0",
+        "xtend": "^4.0.0"
       }
     },
     "is-path-cwd": {
@@ -790,7 +790,7 @@
       "integrity": "sha1-ZHdYK4IU1gI0YJRWcAO+ip6sBNw=",
       "dev": true,
       "requires": {
-        "is-path-inside": "1.0.0"
+        "is-path-inside": "^1.0.0"
       }
     },
     "is-path-inside": {
@@ -799,7 +799,7 @@
       "integrity": "sha1-/AbloWg/vaE95mev9xe7wQpI838=",
       "dev": true,
       "requires": {
-        "path-is-inside": "1.0.2"
+        "path-is-inside": "^1.0.1"
       }
     },
     "is-property": {
@@ -814,7 +814,7 @@
       "integrity": "sha1-jfV8YeouPFAUCNEA+wE8+NbgzGI=",
       "dev": true,
       "requires": {
-        "tryit": "1.0.3"
+        "tryit": "^1.0.1"
       }
     },
     "isarray": {
@@ -835,20 +835,20 @@
       "integrity": "sha1-ZcfXPUxNqE1POsMQuRj7C4Azczs=",
       "dev": true,
       "requires": {
-        "abbrev": "1.0.9",
-        "async": "1.5.2",
-        "escodegen": "1.8.1",
-        "esprima": "2.7.3",
-        "glob": "5.0.15",
-        "handlebars": "4.0.10",
-        "js-yaml": "3.4.5",
-        "mkdirp": "0.5.1",
-        "nopt": "3.0.6",
-        "once": "1.4.0",
-        "resolve": "1.1.7",
-        "supports-color": "3.2.3",
-        "which": "1.3.0",
-        "wordwrap": "1.0.0"
+        "abbrev": "1.0.x",
+        "async": "1.x",
+        "escodegen": "1.8.x",
+        "esprima": "2.7.x",
+        "glob": "^5.0.15",
+        "handlebars": "^4.0.1",
+        "js-yaml": "3.x",
+        "mkdirp": "0.5.x",
+        "nopt": "3.x",
+        "once": "1.x",
+        "resolve": "1.1.x",
+        "supports-color": "^3.1.0",
+        "which": "^1.1.1",
+        "wordwrap": "^1.0.0"
       },
       "dependencies": {
         "esprima": {
@@ -863,7 +863,7 @@
           "integrity": "sha1-ZawFBLOVQXHYpklGsq48u4pfVPY=",
           "dev": true,
           "requires": {
-            "has-flag": "1.0.0"
+            "has-flag": "^1.0.0"
           }
         },
         "wordwrap": {
@@ -904,8 +904,8 @@
       "integrity": "sha1-w0A3l98SuRhmV08t4jZG/oyvtE0=",
       "dev": true,
       "requires": {
-        "argparse": "1.0.9",
-        "esprima": "2.7.3"
+        "argparse": "^1.0.2",
+        "esprima": "^2.6.0"
       },
       "dependencies": {
         "esprima": {
@@ -922,7 +922,7 @@
       "integrity": "sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=",
       "dev": true,
       "requires": {
-        "jsonify": "0.0.0"
+        "jsonify": "~0.0.0"
       }
     },
     "jsonify": {
@@ -943,7 +943,7 @@
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "dev": true,
       "requires": {
-        "is-buffer": "1.1.5"
+        "is-buffer": "^1.1.5"
       }
     },
     "lazy-cache": {
@@ -959,8 +959,8 @@
       "integrity": "sha1-uo0znQykphDjo/FFucr0iAcVUFQ=",
       "dev": true,
       "requires": {
-        "prelude-ls": "1.1.2",
-        "type-check": "0.3.2"
+        "prelude-ls": "~1.1.0",
+        "type-check": "~0.3.1"
       }
     },
     "lodash": {
@@ -993,8 +993,8 @@
       "integrity": "sha1-jDigmVAPIVrQnlnxci/QxSv+Ck4=",
       "dev": true,
       "requires": {
-        "lodash._basecopy": "3.0.1",
-        "lodash.keys": "3.1.2"
+        "lodash._basecopy": "^3.0.0",
+        "lodash.keys": "^3.0.0"
       }
     },
     "lodash._baseclone": {
@@ -1003,12 +1003,12 @@
       "integrity": "sha1-MDUZv2OT/n5C802LYw73eU41Qrc=",
       "dev": true,
       "requires": {
-        "lodash._arraycopy": "3.0.0",
-        "lodash._arrayeach": "3.0.0",
-        "lodash._baseassign": "3.2.0",
-        "lodash._basefor": "3.0.3",
-        "lodash.isarray": "3.0.4",
-        "lodash.keys": "3.1.2"
+        "lodash._arraycopy": "^3.0.0",
+        "lodash._arrayeach": "^3.0.0",
+        "lodash._baseassign": "^3.0.0",
+        "lodash._basefor": "^3.0.0",
+        "lodash.isarray": "^3.0.0",
+        "lodash.keys": "^3.0.0"
       }
     },
     "lodash._basecopy": {
@@ -1023,9 +1023,9 @@
       "integrity": "sha1-8sIEKWwqeOArOJCBtu3KyTPPYpw=",
       "dev": true,
       "requires": {
-        "lodash._baseindexof": "3.1.0",
-        "lodash._cacheindexof": "3.0.2",
-        "lodash._createcache": "3.1.2"
+        "lodash._baseindexof": "^3.0.0",
+        "lodash._cacheindexof": "^3.0.0",
+        "lodash._createcache": "^3.0.0"
       }
     },
     "lodash._baseflatten": {
@@ -1034,8 +1034,8 @@
       "integrity": "sha1-B3D/gBMa9uNPO1EXlqe6UhTmX/c=",
       "dev": true,
       "requires": {
-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4"
+        "lodash.isarguments": "^3.0.0",
+        "lodash.isarray": "^3.0.0"
       }
     },
     "lodash._basefor": {
@@ -1068,9 +1068,9 @@
       "integrity": "sha1-g4pbri/aymOsIt7o4Z+k5taXCxE=",
       "dev": true,
       "requires": {
-        "lodash._bindcallback": "3.0.1",
-        "lodash._isiterateecall": "3.0.9",
-        "lodash.restparam": "3.6.1"
+        "lodash._bindcallback": "^3.0.0",
+        "lodash._isiterateecall": "^3.0.0",
+        "lodash.restparam": "^3.0.0"
       }
     },
     "lodash._createcache": {
@@ -1079,7 +1079,7 @@
       "integrity": "sha1-VtagZAF2JeeevKa4AY4XRAvc8JM=",
       "dev": true,
       "requires": {
-        "lodash._getnative": "3.9.1"
+        "lodash._getnative": "^3.0.0"
       }
     },
     "lodash._getnative": {
@@ -1106,8 +1106,8 @@
       "integrity": "sha1-/2G5oBens699MObFPeKK+hm4dQo=",
       "dev": true,
       "requires": {
-        "lodash._basefor": "3.0.3",
-        "lodash.keysin": "3.0.8"
+        "lodash._basefor": "^3.0.0",
+        "lodash.keysin": "^3.0.0"
       }
     },
     "lodash.clonedeep": {
@@ -1116,8 +1116,8 @@
       "integrity": "sha1-oKHkDYKl6on/WxR7hETtY9koJ9s=",
       "dev": true,
       "requires": {
-        "lodash._baseclone": "3.3.0",
-        "lodash._bindcallback": "3.0.1"
+        "lodash._baseclone": "^3.0.0",
+        "lodash._bindcallback": "^3.0.0"
       }
     },
     "lodash.isarguments": {
@@ -1138,9 +1138,9 @@
       "integrity": "sha1-moI4rhayAEMpYM1zRlEtASP79MU=",
       "dev": true,
       "requires": {
-        "lodash._basefor": "3.0.3",
-        "lodash.isarguments": "3.1.0",
-        "lodash.keysin": "3.0.8"
+        "lodash._basefor": "^3.0.0",
+        "lodash.isarguments": "^3.0.0",
+        "lodash.keysin": "^3.0.0"
       }
     },
     "lodash.istypedarray": {
@@ -1155,9 +1155,9 @@
       "integrity": "sha1-TbwEcrFWvlCgsoaFXRvQsMZWCYo=",
       "dev": true,
       "requires": {
-        "lodash._getnative": "3.9.1",
-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4"
+        "lodash._getnative": "^3.0.0",
+        "lodash.isarguments": "^3.0.0",
+        "lodash.isarray": "^3.0.0"
       }
     },
     "lodash.keysin": {
@@ -1166,8 +1166,8 @@
       "integrity": "sha1-IsRJPrvtsUJ5YqVLRFssinZ/tH8=",
       "dev": true,
       "requires": {
-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4"
+        "lodash.isarguments": "^3.0.0",
+        "lodash.isarray": "^3.0.0"
       }
     },
     "lodash.merge": {
@@ -1176,17 +1176,17 @@
       "integrity": "sha1-DZDZPtY3sYeEN7s+IWASYNev6ZQ=",
       "dev": true,
       "requires": {
-        "lodash._arraycopy": "3.0.0",
-        "lodash._arrayeach": "3.0.0",
-        "lodash._createassigner": "3.1.1",
-        "lodash._getnative": "3.9.1",
-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4",
-        "lodash.isplainobject": "3.2.0",
-        "lodash.istypedarray": "3.0.6",
-        "lodash.keys": "3.1.2",
-        "lodash.keysin": "3.0.8",
-        "lodash.toplainobject": "3.0.0"
+        "lodash._arraycopy": "^3.0.0",
+        "lodash._arrayeach": "^3.0.0",
+        "lodash._createassigner": "^3.0.0",
+        "lodash._getnative": "^3.0.0",
+        "lodash.isarguments": "^3.0.0",
+        "lodash.isarray": "^3.0.0",
+        "lodash.isplainobject": "^3.0.0",
+        "lodash.istypedarray": "^3.0.0",
+        "lodash.keys": "^3.0.0",
+        "lodash.keysin": "^3.0.0",
+        "lodash.toplainobject": "^3.0.0"
       }
     },
     "lodash.omit": {
@@ -1195,14 +1195,14 @@
       "integrity": "sha1-iX/jguZBPZrJfGH3jtHgV6AK+fM=",
       "dev": true,
       "requires": {
-        "lodash._arraymap": "3.0.0",
-        "lodash._basedifference": "3.0.3",
-        "lodash._baseflatten": "3.1.4",
-        "lodash._bindcallback": "3.0.1",
-        "lodash._pickbyarray": "3.0.2",
-        "lodash._pickbycallback": "3.0.0",
-        "lodash.keysin": "3.0.8",
-        "lodash.restparam": "3.6.1"
+        "lodash._arraymap": "^3.0.0",
+        "lodash._basedifference": "^3.0.0",
+        "lodash._baseflatten": "^3.0.0",
+        "lodash._bindcallback": "^3.0.0",
+        "lodash._pickbyarray": "^3.0.0",
+        "lodash._pickbycallback": "^3.0.0",
+        "lodash.keysin": "^3.0.0",
+        "lodash.restparam": "^3.0.0"
       }
     },
     "lodash.restparam": {
@@ -1217,8 +1217,8 @@
       "integrity": "sha1-KHkK2ULSk9eKpmOgfs9/UsoEGY0=",
       "dev": true,
       "requires": {
-        "lodash._basecopy": "3.0.1",
-        "lodash.keysin": "3.0.8"
+        "lodash._basecopy": "^3.0.0",
+        "lodash.keysin": "^3.0.0"
       }
     },
     "longest": {
@@ -1239,7 +1239,7 @@
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
       "dev": true,
       "requires": {
-        "brace-expansion": "1.1.8"
+        "brace-expansion": "^1.1.7"
       }
     },
     "minimist": {
@@ -1296,8 +1296,8 @@
           "integrity": "sha1-Spc/Y1uRkPcV0QmH1cAP0oFevj0=",
           "dev": true,
           "requires": {
-            "inherits": "2.0.3",
-            "minimatch": "0.3.0"
+            "inherits": "2",
+            "minimatch": "0.3"
           }
         },
         "minimatch": {
@@ -1306,8 +1306,8 @@
           "integrity": "sha1-J12O2qxPG7MyZHIInnlJyDlGmd0=",
           "dev": true,
           "requires": {
-            "lru-cache": "2.7.3",
-            "sigmund": "1.0.1"
+            "lru-cache": "2",
+            "sigmund": "~1.0.0"
           }
         },
         "ms": {
@@ -1342,7 +1342,7 @@
       "integrity": "sha1-xkZdvwirzU2zWTF/eaxopkayj/k=",
       "dev": true,
       "requires": {
-        "abbrev": "1.0.9"
+        "abbrev": "1"
       }
     },
     "number-is-nan": {
@@ -1363,7 +1363,7 @@
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
       "dev": true,
       "requires": {
-        "wrappy": "1.0.2"
+        "wrappy": "1"
       }
     },
     "onetime": {
@@ -1378,8 +1378,8 @@
       "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
       "dev": true,
       "requires": {
-        "minimist": "0.0.8",
-        "wordwrap": "0.0.3"
+        "minimist": "~0.0.1",
+        "wordwrap": "~0.0.2"
       }
     },
     "optionator": {
@@ -1388,12 +1388,12 @@
       "integrity": "sha1-tj7Lvw4xX61LyYJ7Rdx7pFKE/LY=",
       "dev": true,
       "requires": {
-        "deep-is": "0.1.3",
-        "fast-levenshtein": "1.0.7",
-        "levn": "0.2.5",
-        "prelude-ls": "1.1.2",
-        "type-check": "0.3.2",
-        "wordwrap": "0.0.3"
+        "deep-is": "~0.1.3",
+        "fast-levenshtein": "~1.0.6",
+        "levn": "~0.2.5",
+        "prelude-ls": "~1.1.1",
+        "type-check": "~0.3.1",
+        "wordwrap": "~0.0.2"
       }
     },
     "os-homedir": {
@@ -1432,7 +1432,7 @@
       "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
       "dev": true,
       "requires": {
-        "pinkie": "2.0.4"
+        "pinkie": "^2.0.0"
       }
     },
     "prelude-ls": {
@@ -1453,13 +1453,13 @@
       "integrity": "sha512-m+qzzcn7KUxEmd1gMbchF+Y2eIUbieUaxkWtptyHywrX0rE8QEYqPC07Vuy4Wm32/xE16NcdBctb8S0Xe/5IeQ==",
       "dev": true,
       "requires": {
-        "core-util-is": "1.0.2",
-        "inherits": "2.0.3",
-        "isarray": "1.0.0",
-        "process-nextick-args": "1.0.7",
-        "safe-buffer": "5.1.1",
-        "string_decoder": "1.0.3",
-        "util-deprecate": "1.0.2"
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~1.0.6",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.0.3",
+        "util-deprecate": "~1.0.1"
       }
     },
     "readline2": {
@@ -1468,8 +1468,8 @@
       "integrity": "sha1-QQWWCP/BVHV7cV2ZidGZ/783LjU=",
       "dev": true,
       "requires": {
-        "code-point-at": "1.1.0",
-        "is-fullwidth-code-point": "1.0.0",
+        "code-point-at": "^1.0.0",
+        "is-fullwidth-code-point": "^1.0.0",
         "mute-stream": "0.0.5"
       }
     },
@@ -1491,8 +1491,8 @@
       "integrity": "sha1-NGYfRohjJ/7SmRR5FSJS35LapUE=",
       "dev": true,
       "requires": {
-        "exit-hook": "1.1.1",
-        "onetime": "1.1.0"
+        "exit-hook": "^1.0.0",
+        "onetime": "^1.0.0"
       }
     },
     "right-align": {
@@ -1502,7 +1502,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "align-text": "0.1.4"
+        "align-text": "^0.1.1"
       }
     },
     "rimraf": {
@@ -1511,7 +1511,7 @@
       "integrity": "sha1-wjOOxkPfeht/5cVPqG9XQopV8z0=",
       "dev": true,
       "requires": {
-        "glob": "7.1.2"
+        "glob": "^7.0.5"
       },
       "dependencies": {
         "glob": {
@@ -1520,12 +1520,12 @@
           "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
           "dev": true,
           "requires": {
-            "fs.realpath": "1.0.0",
-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
         }
       }
@@ -1536,7 +1536,7 @@
       "integrity": "sha1-yK1KXhEGYeQCp9IbUw4AnyX444k=",
       "dev": true,
       "requires": {
-        "once": "1.4.0"
+        "once": "^1.3.0"
       }
     },
     "rx-lite": {
@@ -1569,7 +1569,7 @@
       "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
       "dev": true,
       "requires": {
-        "amdefine": "1.0.1"
+        "amdefine": ">=0.0.4"
       }
     },
     "sprintf-js": {
@@ -1578,24 +1578,24 @@
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
       "dev": true
     },
-    "string_decoder": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true,
-      "requires": {
-        "safe-buffer": "5.1.1"
-      }
-    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
       "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
       "dev": true,
       "requires": {
-        "code-point-at": "1.1.0",
-        "is-fullwidth-code-point": "1.0.0",
-        "strip-ansi": "3.0.1"
+        "code-point-at": "^1.0.0",
+        "is-fullwidth-code-point": "^1.0.0",
+        "strip-ansi": "^3.0.0"
+      }
+    },
+    "string_decoder": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "~5.1.0"
       }
     },
     "strip-ansi": {
@@ -1604,7 +1604,7 @@
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "dev": true,
       "requires": {
-        "ansi-regex": "2.1.1"
+        "ansi-regex": "^2.0.0"
       }
     },
     "strip-json-comments": {
@@ -1649,7 +1649,7 @@
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
       "requires": {
-        "prelude-ls": "1.1.2"
+        "prelude-ls": "~1.1.2"
       }
     },
     "type-detect": {
@@ -1671,9 +1671,9 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "source-map": "0.5.7",
-        "uglify-to-browserify": "1.0.2",
-        "yargs": "3.10.0"
+        "source-map": "~0.5.1",
+        "uglify-to-browserify": "~1.0.0",
+        "yargs": "~3.10.0"
       },
       "dependencies": {
         "source-map": {
@@ -1698,7 +1698,7 @@
       "integrity": "sha1-nHC/2Babwdy/SGBODwS4tJzenp8=",
       "dev": true,
       "requires": {
-        "os-homedir": "1.0.2"
+        "os-homedir": "^1.0.0"
       }
     },
     "util-deprecate": {
@@ -1713,7 +1713,7 @@
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "window-size": {
@@ -1741,7 +1741,7 @@
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
       "dev": true,
       "requires": {
-        "mkdirp": "0.5.1"
+        "mkdirp": "^0.5.1"
       }
     },
     "xml-escape": {
@@ -1763,9 +1763,9 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "camelcase": "1.2.1",
-        "cliui": "2.1.0",
-        "decamelize": "1.2.0",
+        "camelcase": "^1.0.2",
+        "cliui": "^2.1.0",
+        "decamelize": "^1.0.0",
         "window-size": "0.1.0"
       }
     }
diff --git a/test/writable_streambuffer.test.js b/test/writable_streambuffer.test.js
index 0df3402..6ec49a4 100644
--- a/test/writable_streambuffer.test.js
+++ b/test/writable_streambuffer.test.js
@@ -9,12 +9,12 @@ describe('WritableStreamBuffer with defaults', function() {
     this.buffer = new streamBuffer.WritableStreamBuffer();
   });
 
-  it('returns false on call to getContents() when empty', function() {
-    expect(this.buffer.getContents()).to.be.false;
+  it('returns empty buffer on call to getContents() when empty', function() {
+    expect(this.buffer.getContents().byteLength).to.equal(0);
   });
 
-  it('returns false on call to getContentsAsString() when empty', function() {
-    expect(this.buffer.getContentsAsString()).to.be.false;
+  it('returns empty string on call to getContentsAsString() when empty', function() {
+    expect(this.buffer.getContentsAsString()).to.equal('');
   });
 
   it('backing buffer should be default size', function() {