From 2d4e617c9574ad5aabb2d1f348fa65e84acb7abe Mon Sep 17 00:00:00 2001
From: Jon Masters <jon.masters@sky.com>
Date: Thu, 27 Jul 2017 17:21:31 +0100
Subject: [PATCH] Issue #821 - Prevent TypeError in resize()

---
 .gitignore        |    1 +
 package-lock.json | 2238 ++++++++++++++++++++++++---------------------
 package.json      |    2 +-
 src/xterm.js      |    3 +
 4 files changed, 1219 insertions(+), 1025 deletions(-)

diff --git a/.gitignore b/.gitignore
index d5531c1..cb7551a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,7 @@ npm-debug.log
 .env
 build/
 .vscode/
+.DS_Store
 
 # Directories needed for code coverage
 /coverage/
diff --git a/package-lock.json b/package-lock.json
index 98ea098..75d2afc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -55,6 +55,12 @@
       "integrity": "sha1-uB3l9ydOxOdW15fNg08wNkJyTl0=",
       "dev": true
     },
+    "acorn": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
+      "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=",
+      "dev": true
+    },
     "acorn-globals": {
       "version": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-3.1.0.tgz",
       "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
@@ -103,6 +109,24 @@
       "integrity": "sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=",
       "dev": true
     },
+    "array-filter": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/array-filter/-/array-filter-0.0.1.tgz",
+      "integrity": "sha1-fajPLiZijtcygDWB/SH2fKzS7uw=",
+      "dev": true
+    },
+    "array-map": {
+      "version": "0.0.0",
+      "resolved": "https://registry.npmjs.org/array-map/-/array-map-0.0.0.tgz",
+      "integrity": "sha1-iKK6tz0c97zVwbEYoAP2b2ZfpmI=",
+      "dev": true
+    },
+    "array-reduce": {
+      "version": "0.0.0",
+      "resolved": "https://registry.npmjs.org/array-reduce/-/array-reduce-0.0.0.tgz",
+      "integrity": "sha1-FziZ0//Rx9k4PkR5Ul2+J4yrXys=",
+      "dev": true
+    },
     "array-slice": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.0.0.tgz",
@@ -120,11 +144,40 @@
       "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
       "dev": true
     },
+    "asn1.js": {
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.9.1.tgz",
+      "integrity": "sha1-SLokC0WpKA6UdImQull9IWYX/UA=",
+      "dev": true,
+      "requires": {
+        "bn.js": "4.11.7",
+        "inherits": "2.0.3",
+        "minimalistic-assert": "1.0.0"
+      }
+    },
+    "assert": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/assert/-/assert-1.4.1.tgz",
+      "integrity": "sha1-mZEtWRg2tab1s0XA8H7vwI/GXZE=",
+      "dev": true,
+      "requires": {
+        "util": "0.10.3"
+      }
+    },
     "assert-plus": {
       "version": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
       "integrity": "sha1-104bh+ev/A24qttwIfP+SBAasjQ=",
       "dev": true
     },
+    "astw": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/astw/-/astw-2.2.0.tgz",
+      "integrity": "sha1-e9QXhNMkk5h66yOba04cV6hzuRc=",
+      "dev": true,
+      "requires": {
+        "acorn": "4.0.13"
+      }
+    },
     "asynckit": {
       "version": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
@@ -140,6 +193,12 @@
       "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=",
       "dev": true
     },
+    "base64-js": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.1.tgz",
+      "integrity": "sha512-dwVUVIXsBZXwTuwnXI9RK8sBmgq09NDHzyR9SAph9eqk76gKK2JSQmZARC2zRC81JC2QTtxD0ARU5qTS25gIGw==",
+      "dev": true
+    },
     "bcrypt-pbkdf": {
       "version": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
@@ -155,6 +214,12 @@
       "integrity": "sha1-5tXqjF2tABMEpwsiY4RH9pyy+Ak=",
       "dev": true
     },
+    "bn.js": {
+      "version": "4.11.7",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.7.tgz",
+      "integrity": "sha512-LxFiV5mefv0ley0SzqkOPR1bC4EbpPx8LkOz5vMe/Yi15t5hzwgO/G+tc7wOtL4PZTYjwHu8JnEiSLumuSjSfA==",
+      "dev": true
+    },
     "boom": {
       "version": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
       "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
@@ -163,6 +228,42 @@
         "hoek": "https://registry.npmjs.org/hoek/-/hoek-2.16.3.tgz"
       }
     },
+    "brorand": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
+      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=",
+      "dev": true
+    },
+    "browser-pack": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/browser-pack/-/browser-pack-6.0.2.tgz",
+      "integrity": "sha1-+GzWzvT1MAyOY+B6TVEvZfv/RTE=",
+      "dev": true,
+      "requires": {
+        "combine-source-map": "0.7.2",
+        "defined": "1.0.0",
+        "JSONStream": "1.3.1",
+        "through2": "2.0.3",
+        "umd": "3.0.1"
+      }
+    },
+    "browser-resolve": {
+      "version": "1.11.2",
+      "resolved": "https://registry.npmjs.org/browser-resolve/-/browser-resolve-1.11.2.tgz",
+      "integrity": "sha1-j/CbCixCFxihBRwmCzLkj0QpOM4=",
+      "dev": true,
+      "requires": {
+        "resolve": "1.1.7"
+      },
+      "dependencies": {
+        "resolve": {
+          "version": "1.1.7",
+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
+          "integrity": "sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=",
+          "dev": true
+        }
+      }
+    },
     "browserify": {
       "version": "13.3.0",
       "resolved": "https://registry.npmjs.org/browserify/-/browserify-13.3.0.tgz",
@@ -178,7 +279,7 @@
         "concat-stream": "1.5.2",
         "console-browserify": "1.1.0",
         "constants-browserify": "1.0.0",
-        "crypto-browserify": "3.11.0",
+        "crypto-browserify": "3.11.1",
         "defined": "1.0.0",
         "deps-sort": "2.0.0",
         "domain-browser": "1.1.7",
@@ -201,7 +302,7 @@
         "querystring-es3": "0.2.1",
         "read-only-stream": "2.0.0",
         "readable-stream": "2.3.3",
-        "resolve": "1.3.3",
+        "resolve": "1.4.0",
         "shasum": "1.0.2",
         "shell-quote": "1.6.1",
         "stream-browserify": "2.0.1",
@@ -218,1050 +319,204 @@
         "xtend": "4.0.1"
       },
       "dependencies": {
-        "acorn": {
-          "version": "4.0.13",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
-          "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=",
-          "dev": true
-        },
-        "array-filter": {
-          "version": "0.0.1",
-          "resolved": "https://registry.npmjs.org/array-filter/-/array-filter-0.0.1.tgz",
-          "integrity": "sha1-fajPLiZijtcygDWB/SH2fKzS7uw=",
-          "dev": true
-        },
-        "array-map": {
-          "version": "0.0.0",
-          "resolved": "https://registry.npmjs.org/array-map/-/array-map-0.0.0.tgz",
-          "integrity": "sha1-iKK6tz0c97zVwbEYoAP2b2ZfpmI=",
-          "dev": true
-        },
-        "array-reduce": {
-          "version": "0.0.0",
-          "resolved": "https://registry.npmjs.org/array-reduce/-/array-reduce-0.0.0.tgz",
-          "integrity": "sha1-FziZ0//Rx9k4PkR5Ul2+J4yrXys=",
-          "dev": true
-        },
-        "asn1.js": {
-          "version": "4.9.1",
-          "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.9.1.tgz",
-          "integrity": "sha1-SLokC0WpKA6UdImQull9IWYX/UA=",
-          "dev": true,
-          "requires": {
-            "bn.js": "4.11.7",
-            "inherits": "2.0.3",
-            "minimalistic-assert": "1.0.0"
-          }
-        },
-        "assert": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/assert/-/assert-1.4.1.tgz",
-          "integrity": "sha1-mZEtWRg2tab1s0XA8H7vwI/GXZE=",
-          "dev": true,
-          "requires": {
-            "util": "0.10.3"
-          }
-        },
-        "astw": {
-          "version": "2.2.0",
-          "resolved": "https://registry.npmjs.org/astw/-/astw-2.2.0.tgz",
-          "integrity": "sha1-e9QXhNMkk5h66yOba04cV6hzuRc=",
+        "duplexer2": {
+          "version": "0.1.4",
+          "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.1.4.tgz",
+          "integrity": "sha1-ixLauHjA1p4+eJEFFmKjL8a93ME=",
           "dev": true,
           "requires": {
-            "acorn": "4.0.13"
+            "readable-stream": "2.3.3"
           }
         },
-        "base64-js": {
-          "version": "1.2.1",
-          "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.1.tgz",
-          "integrity": "sha512-dwVUVIXsBZXwTuwnXI9RK8sBmgq09NDHzyR9SAph9eqk76gKK2JSQmZARC2zRC81JC2QTtxD0ARU5qTS25gIGw==",
-          "dev": true
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-        "bn.js": {
-          "version": "4.11.7",
-          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.7.tgz",
-          "integrity": "sha512-LxFiV5mefv0ley0SzqkOPR1bC4EbpPx8LkOz5vMe/Yi15t5hzwgO/G+tc7wOtL4PZTYjwHu8JnEiSLumuSjSfA==",
+        "isarray": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
           "dev": true
         },
-        "brorand": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
-          "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=",
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
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-            "defined": "1.0.0",
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-            "through2": "2.0.3",
-            "umd": "3.0.1"
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-          "integrity": "sha1-j/CbCixCFxihBRwmCzLkj0QpOM4=",
+        "readable-stream": {
+          "version": "2.3.3",
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+          "integrity": "sha512-m+qzzcn7KUxEmd1gMbchF+Y2eIUbieUaxkWtptyHywrX0rE8QEYqPC07Vuy4Wm32/xE16NcdBctb8S0Xe/5IeQ==",
           "dev": true,
           "requires": {
-            "resolve": "1.1.7"
+            "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",
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+              "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
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+              "requires": {
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+              }
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+      "integrity": "sha1-Xncl297x/Vkw1OurSFZ85FHEigo=",
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+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/browserify-cipher/-/browserify-cipher-1.0.0.tgz",
+      "integrity": "sha1-mYgkSHS/XtTijalWZtzWasj8Njo=",
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+      "requires": {
+        "browserify-aes": "1.0.6",
+        "browserify-des": "1.0.0",
+        "evp_bytestokey": "1.0.0"
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+      "version": "1.0.0",
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+      "integrity": "sha1-2qJ3cXRwki7S/hhZQRihdUOXId0=",
+      "dev": true,
+      "requires": {
+        "cipher-base": "1.0.4",
+        "des.js": "1.0.0",
+        "inherits": "2.0.3"
+      }
+    },
+    "browserify-rsa": {
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+      "resolved": "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz",
+      "integrity": "sha1-IeCr+vbyApzy+vsTNWenAdQTVSQ=",
+      "dev": true,
+      "requires": {
+        "bn.js": "4.11.7",
+        "randombytes": "2.0.5"
+      }
+    },
+    "browserify-sign": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.0.4.tgz",
+      "integrity": "sha1-qk62jl17ZYuqa/alfmMMvXqT0pg=",
+      "dev": true,
+      "requires": {
+        "bn.js": "4.11.7",
+        "browserify-rsa": "4.0.1",
+        "create-hash": "1.1.3",
+        "create-hmac": "1.1.6",
+        "elliptic": "6.4.0",
+        "inherits": "2.0.3",
+        "parse-asn1": "5.1.0"
+      }
+    },
+    "browserify-zlib": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/browserify-zlib/-/browserify-zlib-0.1.4.tgz",
+      "integrity": "sha1-uzX4pRn2AOD6a4SFJByXnQFB+y0=",
+      "dev": true,
+      "requires": {
+        "pako": "0.2.9"
+      }
+    },
+    "buffer": {
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz",
+      "integrity": "sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=",
+      "dev": true,
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+      "resolved": "https://registry.npmjs.org/subarg/-/subarg-1.0.0.tgz",
+      "integrity": "sha1-9izxdYHplrSPyWVpn1TAauJouNI=",
+      "dev": true,
+      "requires": {
+        "minimist": "1.2.0"
+      }
+    },
     "supports-color": {
       "version": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
@@ -11421,6 +11519,15 @@
       "integrity": "sha1-rifbOPZgp64uHDt9G8KQgZuFGeY=",
       "dev": true
     },
+    "syntax-error": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/syntax-error/-/syntax-error-1.3.0.tgz",
+      "integrity": "sha1-HtkmbE1AvnXcVb+bsct3Biu5bKE=",
+      "dev": true,
+      "requires": {
+        "acorn": "4.0.13"
+      }
+    },
     "term-size": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/term-size/-/term-size-0.1.1.tgz",
@@ -11430,6 +11537,12 @@
         "execa": "0.4.0"
       }
     },
+    "through": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
+      "dev": true
+    },
     "through2": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/through2/-/through2-2.0.3.tgz",
@@ -11484,6 +11597,21 @@
       "integrity": "sha1-dkpaEa9QVhkhsTPztE5hhofg9cM=",
       "dev": true
     },
+    "timers-browserify": {
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/timers-browserify/-/timers-browserify-1.4.2.tgz",
+      "integrity": "sha1-ycWLV1voQHN1y14kYtrO50NZ9B0=",
+      "dev": true,
+      "requires": {
+        "process": "0.11.10"
+      }
+    },
+    "to-arraybuffer": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz",
+      "integrity": "sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=",
+      "dev": true
+    },
     "tough-cookie": {
       "version": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
       "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo=",
@@ -12111,6 +12239,12 @@
       "integrity": "sha1-ufmrROVa+WgYMdXyjQrur1x1DLA=",
       "dev": true
     },
+    "tty-browserify": {
+      "version": "0.0.0",
+      "resolved": "https://registry.npmjs.org/tty-browserify/-/tty-browserify-0.0.0.tgz",
+      "integrity": "sha1-oVe6QC2iTpv5V/mqadUk7tQpAaY=",
+      "dev": true
+    },
     "tunnel-agent": {
       "version": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.4.3.tgz",
       "integrity": "sha1-Y3PbdpCf5XDgjXNYM2Xtgop07us=",
@@ -12130,12 +12264,24 @@
         "prelude-ls": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz"
       }
     },
+    "typedarray": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+      "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
+      "dev": true
+    },
     "typescript": {
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.2.2.tgz",
       "integrity": "sha1-YGAiUIR5tV/6NotY/uljoD39eww=",
       "dev": true
     },
+    "umd": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/umd/-/umd-3.0.1.tgz",
+      "integrity": "sha1-iuVW4RAR9jwllnCKiDclnwGz1g4=",
+      "dev": true
+    },
     "unique-string": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unique-string/-/unique-string-1.0.0.tgz",
@@ -12145,6 +12291,41 @@
         "crypto-random-string": "1.0.0"
       }
     },
+    "url": {
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/url/-/url-0.11.0.tgz",
+      "integrity": "sha1-ODjpfPxgUh63PFJajlW/3Z4uKPE=",
+      "dev": true,
+      "requires": {
+        "punycode": "1.3.2",
+        "querystring": "0.2.0"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.3.2",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.3.2.tgz",
+          "integrity": "sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0=",
+          "dev": true
+        }
+      }
+    },
+    "util": {
+      "version": "0.10.3",
+      "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
+      "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
+      "dev": true,
+      "requires": {
+        "inherits": "2.0.1"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
+          "integrity": "sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=",
+          "dev": true
+        }
+      }
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -12329,6 +12510,15 @@
         }
       }
     },
+    "vm-browserify": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-0.0.4.tgz",
+      "integrity": "sha1-XX6kW7755Kb/ZflUOOCofDV9WnM=",
+      "dev": true,
+      "requires": {
+        "indexof": "0.0.1"
+      }
+    },
     "webidl-conversions": {
       "version": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.1.tgz",
       "integrity": "sha1-gBWherg+fhsxFjhIas6B2mziBqA=",
diff --git a/package.json b/package.json
index 917d35e..9064555 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@types/jsdom": "^11.0.1",
     "@types/mocha": "^2.2.33",
     "@types/node": "^6.0.41",
-    "browserify": "^13.1.0",
+    "browserify": "^13.3.0",
     "chai": "3.5.0",
     "docdash": "0.4.0",
     "express": "4.13.4",
diff --git a/src/xterm.js b/src/xterm.js
index b1f2069..f26e4e1 100644
--- a/src/xterm.js
+++ b/src/xterm.js
@@ -1941,6 +1941,9 @@ Terminal.prototype.resize = function(x, y) {
     ch = [this.defAttr, ' ', 1]; // does xterm use the default attr?
     i = this.buffer.lines.length;
     while (i--) {
+      if (this.buffer.lines.get(i) === undefined) {
+        this.buffer.lines.set(i, this.blankLine());
+      }
       while (this.buffer.lines.get(i).length < x) {
         this.buffer.lines.get(i).push(ch);
       }
-- 
2.39.2