Whenever I try to preview a list with a null item e.g.
[{"id": 18855, "kind": null, "type": "484", "description": null, "name": "JOHN DOE"}]
The error is as shown below.
The error is caused by the null in description.
Uncaught TypeError: Cannot read property 'toString' of null
at HTMLElement._cast (paper-datatable/paper-datatable-column.html:346:19)
at HTMLElement._formatValue (paper-datatable/paper-datatable-column.html:298:18)
at cells.forEach (paper-datatable/paper-datatable.html:632:66)
at Array.forEach (native)
at HTMLElement. (paper-datatable/paper-datatable.html:590:14)
at Debouncer.complete (polymer/polymer-mini.html:2094:10)
at Debouncer.boundComplete (polymer/polymer-mini.html:2071:6)
at Object._atEndOfMicrotask (polymer/polymer-mini.html:2049:1)
at MutationObserver.window.MutationObserver.observe.characterData (polymer/polymer-mini.html:2064:15)