IE8 Gets Absolute URL For Image Added From Image Manager

2 posts, 1 answers
  1. Amy
    Amy avatar
    4 posts
    Member since:
    Apr 2006

    Posted 13 Apr 2016 Link to this post

    When using IE8, if I add an image to the content in the editor via the Image Manager, the SRC attribute gets an absolute URL. I can reproduce this on your demo at 

    When using IE9 or higher, the SRC gets a virtual path, which is what we want.

    Is there a way to make IE8 get a virtual path?

  2. Answer
    Joana avatar
    134 posts

    Posted 18 Apr 2016 Link to this post

    Hello Amy,

    You could implement a custom content filter to convert the absolute URLs into relative ones. You could find more information here in our documentation.

    For your convenience, I have prepared a sample filter that could be used:

    <script type="text/javascript">
         function OnClientLoad(editor, args)
             editor.get_filtersManager().add(new ConvertToVirtualPath());
         ConvertToVirtualPath = function ()
             this.set_name("RadEditor ConvertToVirtualPath filter");
             this.set_description("RadEditor ConvertToVirtualPath filter description");
         ConvertToVirtualPath.prototype =
             getHtmlContent: function(content)
                 var regExp = new RegExp("src=[\"'](.+?)[\"'].*?", "gi");
                 var newContent = content.replace(regExp, function(match, offset, fullText)
                     return match.replace("http://" +, "");
                 return newContent;
         ConvertToVirtualPath.registerClass('ConvertToVirtualPath', Telerik.Web.UI.Editor.Filter);

    Set the OnClientLoad event of the RadEditor and add the new filter.

    I hope this will help you achieve your scenario.

    Do you need help with upgrading your ASP.NET AJAX, WPF or WinForms projects? Check the Telerik API Analyzer and share your thoughts.
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