Error encountered at the conclusion of the line: "An error has been detected in the script on this page" in IE 11

While testing a legacy website that was initially designed for IE8 in IE11, I encountered an issue. On IE11, I am receiving an error message stating "An Error has occurred in the script on this page" when accessing a specific part of the code (it functions properly on IE8). The error points to the last line of the clientCXMLDocument.js file, but after reviewing the code, I couldn't find any apparent issues.

When disabling "Disable script debugging (Internet Explorer)" in Internet Options on IE11, the error no longer appears. However, I am curious to understand the root cause of this error.

javascriptinternet-explorererror-handlinginternet-explorer-8internet-explorer-11

Answer №1

IE11 has made significant changes by removing and replacing various APIs, which are documented here:

View the list of updated APIs

One notable change is that document.selection will no longer function in IE11, so it's important to update your JavaScript code accordingly with the new replacements.

During this transition period, consider using the IE X-UA tag to specify IE8 legacy document mode:

<meta http-equiv="X-UA-Compatible" content="IE=8" />

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