`startsWith` error in Safari 8

[imjared]

using Gatsby v1.0.0
I was unable to locate gatsby-node.js, gatsby-browser.js. package.json is as follows:

{
  "name": "gatsby-starter-default",
  "description": "Gatsby default starter",
  "version": "1.0.0",
  "author": "Kyle Mathews <mathews.kyle@gmail.com>",
  "dependencies": {
    "btoa": "^1.1.2",
    "front-matter": "^2.0.7",
    "gatsby": "^0.12.12",
    "highlight.js": "^9.6.0",
    "history": "^2.0.2",
    "js-yaml": "^3.6.0",
    "markdown-it": "^7.0.1",
    "markdown-it-abbr": "^1.0.3",
    "markdown-it-attrs": "^0.6.3",
    "markdown-it-deflist": "^2.0.1",
    "markdown-it-footnote": "^3.0.1",
    "markdown-it-sub": "^1.0.0",
    "object-assign": "^4.1.0",
    "react-autosuggest": "^6.0.4",
    "react-headroom": "^2.1.2",
    "react-helmet": "^3.1.0",
    "react-responsive-grid": "^0.3.3",
    "react-typography": "^0.12.0",
    "slugify": "^1.0.2",
    "toml-js": "0.0.8",
    "typography": "^0.13.0",
    "typography-plugin-code": "^0.13.0"
  },
  "devDependencies": {
    "async": "^2.0.1",
    "babel-eslint": "^7.0.0",
    "csv": "^1.1.0",
    "eslint": "^3.7.1",
    "eslint-plugin-babel": "^3.3.0",
    "eslint-plugin-react": "^6.3.0",
    "gh-pages": "^0.11.0",
    "lodash": "^4.16.3",
    "swig": "^1.4.2"
  },
  "keywords": [
    "gatsby"
  ],
  "license": "MIT",
  "main": "n/a",
  "scripts": {
    "start": "gatsby develop",
    "build": "gatsby build",
    "deploy": "node bin/schoolgenerator.js && gatsby build --prefix-links && cp CNAME public/ && gh-pages -d public",
    "deploy-dry": "node bin/schoolgenerator.js && gatsby build",
    "develop": "gatsby develop",
    "test": "echo \"Error: no test specified\" && exit 1"
  }
}

Possibly similar to #264, we're seeing an issue in Safari 8 when loading config.toml in production:

TypeError: undefined is not a function (evaluating 'o.startsWith("/")'). The trace only shows a line in config.toml but the error doesn't really seem related to the output.

The error output is minified so it's not the most helpful but I think it traces back to these lines

Maybe we can change that instance to use the Lodash variation _.startsWith that's used elsewhere?

[KyleAMathews]

Hmm... bummer this got in — it's startsWith is barely supported... I'll fix it right away and make a new release. Thanks for bring it to our attention.

[KyleAMathews]

Published 0.12.14 with the fix. Run npm install --save gatsby@latest to get it.