Safari unable to load generated pages

[erantapaa]

Perhaps this is expected, but I'll mention it anyway...

The index.js created by gatsby new ... doesn't load on Safari 8.0.5 (OS X 10.10.3).

To replicate:

$ gatsby new blah
$ cd blah
$ gatsby develop

When loading http://0.0.0.0:8000 Safari just shows a blank page and reports the following errors in the console:

[Error] TypeError: undefined is not a function (evaluating 'Object.assign({}, this.props, {
      "style": styles
    })')
  perform (undefined, line 18)
  batchedUpdates
  batchedUpdates
  _renderNewRootComponent
  ReactMount__renderNewRootComponent
  _renderSubtreeIntoContainer
  render
  React_render
  (anonymous function)
  exports
  (anonymous function)
  loadConfig
  eval code
  eval ([native code], line 0)
  (anonymous function) (bundle.js, line 2902)
  __webpack_require__ (bundle.js, line 556)
  fn (bundle.js, line 87)
  eval code
  eval ([native code], line 0)
  (anonymous function) (bundle.js, line 586)
  __webpack_require__ (bundle.js, line 556)
  (anonymous function) (bundle.js, line 579)
  global code (bundle.js, line 580)
[Error] Failed to load resource: unsupported URL (performance-now.map, line 0) webpack:///~/react-responsive-grid/~/react-page-width/~/raf/~/performance-now/lib/performance-now.map

[benstepp]

Safari 8.0 doesn't support Object.assign(), and babel uses it all over the place when transforming JSX. You're going to have to polyfill it. Here's one of the easier ways to do so.

npm install --save babel-plugin-transform-object-assign

// .babelrc
{
  "presets": ['react', 'es2015', 'stage-0'],
  "plugins": [
    'transform-object-rest-spread',
    'transform-object-assign'
  ]
}

[KyleAMathews]

Hmmm... perhaps we should just add this plugin to the starters given there's a decent % of browsers in use that don't support Object.assign yet like Safari 8.

[KyleAMathews]

@benstepp actually could you just add this to core in #277 actually? Any reason not to?

[benstepp]

Sounds good.

[KyleAMathews]

Fixed in #279 and released in 0.11