building on this previous post:
https://community.powerbi.com/t5/Developer/Embed-Power-BI-dashboard-in-ASP-Net-core/td-p/273279
the content im receiving back in AuthenticateAsync is this (only a portion):
"\r\n\r\n<!DOCTYPE html>\r\n<html dir=\"ltr\" class=\"\" lang=\"en\">\r\n<head>\r\n <title>Sign in to your account</title>\r\n <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\r\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\r\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, maximum-scale=2.0, user-scalable=yes\">\r\n <meta http-equiv=\"Pragma\" content=\"no-cache\">\r\n <meta http-equiv=\"Expires\" content=\"-1\">\r\n <meta name=\"PageID\" content=\"ConvergedSignIn\" />\r\n <meta name=\"SiteID\" content=\"\" />\r\n <meta name=\"ReqLC\" content=\"1033\" />\r\n <meta name=\"LocLC\" content=\"en-US\" />\r\n\r\n <noscript>\r\n <meta http-equiv=\"Refresh\" content=\"0; URL=https://login.windows.net/common/jsdisabled\" />\r\n </noscript>\r\n <link rel=\"shortcut icon\" href=\"https://secure.aadcdn.microsoftonline-p.com/ests/2.1.7382.8/content/images/favicon_a.ico\" />\r\n \r\n "
which needless to say is not JSON
can anyone tell me whats going on here? and what is my next step to making this work?