[1.0] loader.js fetchResource - cannot read property

[mericsson]

Does this look familiar to anyone? I just resync'ed canary. Gatsby version is: 1.0.0-alpha.22-alpha.18f02e94. It works fine with build and serve targets, but not in develop.

When loading a page in the gatsby app generated via template.

loader.js:82 Uncaught TypeError: Cannot read property 'page-component---src-templates-category-js' of undefined
    at fetchResource (loader.js:82)
    at createResourceDownload (loader.js:38)
    at startResourceDownloading (prefetcher.js:15)
    at prefetcher.js:43

Code in question in browser:

var fetchResource = function fetchResource(resourceName) {
  var cb = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};

  if (resourceStrCache[resourceName]) {
    process.nextTick(function () {
      cb(null, resourceStrCache[resourceName]);
    });
  } else {
    // Find resource
    /* LINE 82 */ var resourceFunction = resourceName.slice(0, 6) === `page-c` ? asyncRequires.components[resourceName] : asyncRequires.json[resourceName];

    // Download the resource
    resourceFunction(function (err, executeChunk) {
      resourceStrCache[resourceName] = executeChunk;
      cb(err, executeChunk);
    });
  }
};

Depending on the page loaded. Error can also look like: Cannot read property 'index.json' of undefined.

The page loads fine but breaks JS and interactivity.

[KyleAMathews]

Yeah, I fixed that a couple of days ago... #1164 I thought I'd released another canary since then. Going to release the first beta in a bit after tests finish in #1177 and I write up the CHANGELOG entry