I have signed up for office 365, I'm trying to edit the sharepoint site in browser.
I have created a simple master page and a content page and uploaded to the site.
MasterPage.master
<%@Master language="C#"%>
<%@ Register tagprefix="SharePoint" namespace="Microsoft.SharePoint.WebControls" assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<SharePoint:RobotsMetaTag runat="server"></SharePoint:RobotsMetaTag>
</head>
<body>
<form id="frmMain" runat="server">
<asp:ContentPlaceHolder ID="cphMain" runat="server">
</asp:ContentPlaceHolder>
</form>
</body>
</html>
default.aspx
<%@ Page Language="C#" MasterPageFile="~site/_catalogs/masterpage/MasterPage.master" inherits="Microsoft.SharePoint.WebPartPages.WebPartPage, Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" meta:progid="SharePoint.WebPartPage.Document" meta:webpartpageexpansion="full" %>
<%@ Register tagprefix="SharePoint" namespace="Microsoft.SharePoint.WebControls" assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<asp:Content ID="content1" runat="server" ContentPlaceHolderID="cphMain">
My custom html
</asp:Content>
I get following error in browser:
Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET4.0C; .NET4.0E; .NET CLR 3.5.30729; .NET CLR 3.0.30729) Timestamp: Sun, 10 Jul 2011 05:34:53 UTC Message: 'null' is null or not an object Line: 2187 Char: 9 Code: 0 URI: http://xxxxmysite.sharepoint.com/_layouts/wh/editor/js/default.aspx.js?rev=Wtx9sUy4auRcV8WoKmyYJQ%3D%3D&lcid=1033&

also the page displays only "please wait"
