Greetings,
I have noticed today that the following demo pages are broken when using the latest versions of Chrome & Edge:
https://demos.telerik.com/aspnet-ajax/htmlchart/examples/functionality/dateaxis/defaultcs.aspx
https://demos.telerik.com/aspnet-ajax/htmlchart/examples/functionality/pan-zoom/defaultcs.aspx
Each of these have a series of JavaScript errors that prevent the page from working:
RadHtmlChart.js:79 Uncaught SyntaxError: Invalid or unexpected token
at b.RadHtmlChart._parseObject (RadHtmlChart.js:79:46)
at b.RadHtmlChart._configurePlotArea (RadHtmlChart.js:128:47)
at b.RadHtmlChart._getMainConfig (RadHtmlChart.js:96:20)
at b.RadHtmlChart._getChartConfig (RadHtmlChart.js:82:3)
at b.RadHtmlChart._createStandardChart (RadHtmlChart.js:74:57)
at b.RadHtmlChart.createChart (RadHtmlChart.js:59:3)
at b.RadHtmlChart._initialize (RadHtmlChart.js:40:3)
at b.RadHtmlChart.initialize (RadHtmlChart.js:34:7)
at b.RadHtmlChart.endUpdate (Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_QsfScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a5bc44d53-7cae-4d56-af98-205692fecf1f%3aea597d4b%3ab25378d2:6:53689)
at Sys.Component.create (Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_QsfScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a5bc44d53-7cae-4d56-af98-205692fecf1f%3aea597d4b%3ab25378d2:6:55151)
Hope this helps ....