Trouble loading example Roadmap data hub in browser

[AkshayBalaji]

Hi, I am trying to understand how the metadata object works in the hub.config json file, and I was trying to run the example Roadmap data hub provided in the documentation to do so, pasted below: { "url": "https://egg.wustl.edu/d/hg19/GSM997242_1.bigWig", "metadata": { "Sample": [ "Adult Cells/Tissues", "Blood", "Other blood cells", "CD4+_CD25-_Th_Primary_Cells" ], "Donor": [ "Donor Identifier", "Donor_332" ], "Assay": [ "Epigenetic Mark", "Histone Mark", "H3", "H3K9", "H3K9me3" ], "Institution": [ "Broad Institute" ] }, "type": "bigwig", "options": { "color": "rgb(159,0,72)" }, "name": "H3K9me3 of CD4+_CD25-_Th_Primary_Cells" }

Could you clarify 1) how to load this data hub properly in the browser and 2) how this metadata should reflect in the browser? Thank you!