JavaScript JSLink with image disappears when logged in as user with Read Permissions

I'm using the following code to place an icon next to the document name.  Under my Owner account I see the icons.  As a user with Read the icons disappear.

(function () {

    // jQuery library is required in this sample
    // Fallback to loading jQuery from a CDN path if the local is unavailable
    //(window.jQuery || document.write('<script src="//ajax.aspnetcdn.com/ajax/jquery/jquery-1.10.0.min.js"><\/script>'));

    // Create object that have the context information about the field that we want to change it's output render
    var linkFilenameFiledContext = {};
    linkFilenameFiledContext.Templates = {};
    linkFilenameFiledContext.Templates.Fields = {
        // Apply the new rendering for LinkFilename field on list view
        "LinkFilename": { "View": linkFilenameFiledTemplate }
    };

    SPClientTemplates.TemplateManager.RegisterTemplateOverrides(linkFilenameFiledContext);

})();

// This function provides the rendering logic
function linkFilenameFiledTemplate(ctx) {

    //var confidential = ctx.CurrentItem["Confidential"];
    var title = ctx.CurrentItem["FileLeafRef"];

    // This Regex expression use to delete extension (.docx, .pdf ...) form the file name
    title = title.replace(/\.[^/.]+$/, "")

    // Check confidential field value
    if (title) {

        // Render HTML that contains the file name and the confidential icon
        return title + "&nbsp;<img src='/SiteCollectionImages/Read-This-Please-icon-16.png' alt='Mark As Read' title='Mark As Read'/>";

    }
    else {
        return title;
    }

}

David Jenkins