1.37.x doesn't ignore `layout.grid: true` during defaults

[protobi-pieter]

The following chart https://codepen.io/__proto__/pen/NMBpyY
renders fine in Plotly.js with CDN version up to 1.36.0 but fails in the latest release 1.37.0

Uncaught TypeError: Cannot read property 'x' of undefined
    at handlePositionDefaults (VM10186 plotly.js:132985)
    at Object.supplyLayoutDefaults (VM10186 plotly.js:132829)
    at Object.plots.supplyLayoutModuleDefaults (VM10186 plotly.js:144174)
    at Object.plots.supplyDefaults (VM10186 plotly.js:143178)
    at Object.exports.plot (VM10186 plotly.js:121060)
    at Object.exports.newPlot (VM10186 plotly.js:121496)
    at VM9694 pen.js:278

I didn't see any release notes for 1.37 so submitting this here in case.

[etpinard]

Thanks for the report.

Removing grid: true from the layout object (which doesn't do anything) makes your graph render again:

https://codepen.io/etpinard/pen/bMjWjy?editors=1010