Configure defaultSession error using JSON file

[1027victor]

Hi, thanks for this excellent software. I have a genome browser working with JBrowseR but when I configure session in the JSON file, the code reports an error：Warning: bindFillRole() only works on htmltools::tag() objects (e.g., div(), p(), etc.), not objects of type 'shiny.tag.list'. then shiny don't work

"defaultSession": {     "name": "hg19",     "views": [       {         "id": "linearGenomeView",         "type": "LinearGenomeView",         "offsetPx": 99,         "bpPerPx": 10000,         "displayedRegions": [           {             "refName": "10",             "start": 0,             "end": 133797422,             "reversed": false,             "assemblyName": "hg19"           }         ],         "tracks": [           {             "id": "ljULB6OHl",             "type": "BasicTrack",             "height": 400,             "configuration": "ncbi_gff_hg19"           }         ],         "hideHeader": false,         "hideHeaderOverview": false,         "trackSelectorType": "hierarchical",         "showTrackLabels": true,         "showCenterLine": false       }     ]   }