Sys.WebForms.PageRequestManager is undefined error in IE11, working fine in IE10 and below
Sys.WebForms is undefined in Chrome
Assyncronous interaction using Sys WebForms PageRequestManager Javascript error : " 'Sys' is undefined " Is it possible to catch error "Sys.WebForms.PageRequestManagerParserErrorException" on the client side? object literal and Sys.WebForms.PageRequestManager.getInstance().add_endRequest issue how to hide browser default tooltip in ie10 and ie11 Sys.WebForms.PageRequestManager.getInstance() not working in IE 10 How to execute javascript once an update panel refreshes (Can't get Sys.WebForms.PageRequestManager.getInstance().add_endRequest(); to work) IE 10 - Unable to get property 'PageRequestManager' of undefined or null reference: getting javascript 'Sys' is undefined error Sys.WebForms undefined on IE 10/11 'Sys' is undefined javascript error JavaScript with webforms, why RegisterClientScript? Another ASP.net AJAX SYS Undefined Error Compatibility from ie11 to ie10 Sys is undefined if IE10 or IE11 display different image Browser detection with IE10/IE11 'Sys is undefined' error javascript error ASP.NET Ajax Error: Sys.WebForms.PageRequestManagerParserErrorException Is there a way to stop IE10/IE11 from showing open or save prompt Pure css click dropdown not working in IE10 and IE11 Run javascript method in asp.net webforms method Sys.WebForms.PageRequestManager.getInstance(); CSS animation for SVG in IE10/IE11 Jquery and webforms in asp.net Blur event not working in IE11 and IE10 Skip JavaScript 'Sys.WebForms..' function when a page doesn't have a ScriptManager (ie10,ie11) error in select tag (use multiple) AddSearchProvider was deprecated in IE10 but reintroduced in IE11?