node 10 crashes with custom importer

[KaboomFox]

• NPM version (npm -v):
  6.7.0
• Node version (node -v):
  v10.0.0
• Node Process (node -p process.versions):

  node: '10.0.0',
  v8: '6.6.346.24-node.5',
  uv: '1.20.2',
  zlib: '1.2.11',
  ares: '1.14.0',
  modules: '64',
  nghttp2: '1.29.0',
  napi: '3',
  openssl: '1.1.0h',
  icu: '61.1',
  unicode: '10.0',
  cldr: '33.0',
  tz: '2018c' }

• Node Platform (node -p process.platform):
  darwin
• Node architecture (node -p process.arch):
  x64
• node-sass version (node -p "require('node-sass').info"):

node-sass       4.11.0  (Wrapper)       [JavaScript]
libsass         3.5.4   (Sass Compiler) [C/C++]

• npm node-sass versions (npm ls node-sass):

/Users/xxxx/repos/xxxxx
└── [email protected]

When encountering a syntax, or compilation issue:

const _sass$renderSync = sass.renderSync({
    data: content,
    includePaths: [_path.default.dirname(filePath)],
    importer: function importer(url) {
      if (url[0] === '~') {
        url = path.resolve('node_modules/', url.substr(1));
      }
      return {file: url};
    }
  });

Gives me:

FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal.
 1: node::Abort() [/usr/local/bin/node]
 2: node::FatalTryCatch::~FatalTryCatch() [/usr/local/bin/node]
 3: v8::V8::ToLocalEmpty() [/usr/local/bin/node]