TypeError: datasets.forEach is not a function at ThreddsCatalogCrawler

Uncaught (in promise) TypeError: datasets.forEach is not a function at ThreddsCatalogCrawler._callee$ (pages_flood_synopsis.js:828) at tryCatch (commons.app.js:5686) at Generator.invoke [as _invoke] (commons.app.js:5912) at Generator.prototype. [as next] (commons.app.js:5738) at asyncGeneratorStep (vendors.app.js:51) at _next (vendors.app.js:73)