Some charting examples are broken


these three has issues with parser:

create-parser.js:52 Uncaught (in promise) TypeError: Cannot read property 'type' of undefined
    at Object.parseExpression (create-parser.js:52)
    at getTransforms (raster-layer-poly-mixin.js:133)
    at Object._layer.__genVega (raster-layer-poly-mixin.js:288)
    at Object._layer._genVega (raster-layer-poly-mixin.js:434)
    at Object._layer.genVega (raster-layer.js:206)
    at raster-chart.js:683
    at Array.forEach (<anonymous>)
    at genLayeredVega (raster-chart.js:682)
    at Object.<anonymous> (raster-chart.js:269)
    at Object._chart.dataAsync (async-mixin.js:44)
server issue


Hi @QuadTriangle

Confirmed issue #1, and a bug has been opened. There will be a fix in the coming weeks.
Issue #2 is caused by referring to an OmniSci server which does not have public access. This will also be addressed soon.