Attempts to play a DASH stream with a «dash.js» cause an error: “XMLHttpRequest cannot load http://localhost:8888/dash/manifest.mpd. No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://localhost:7865’ is therefore not allowed access.». DASH stream is created and present in the stream list «http://localhost:8888/EMS_Web_UI/index.php». Sample from “https://github.com/Dash-Industry-Forum/dash.js” plays without problems. As a web server using IIS.