由于名称中有空格，WebView 无法显示本地 .htm 文件。我收到错误
Error Domain=NSURLErrorDomain Code=-1100 "The requested URL was not found on this server." UserInfo=0x400ea1900 {NSUnderlyingError=0x400265c80 "The requested URL was not found on this server.", NSErrorFailingURLStringKey=file:///Users/olgadalton/Library/Caches/ee.64.xxx/_books/Deployment-guide-for-Microsoft-SharePoint-Server-2010_2/OEBPS/Text/Deployment%2520Guide%2520for%2520Microsoft%2520SharePoint%2520Server%25202010_split_000.htm, NSErrorFailingURLKey=file:///Users/olgadalton/Library/Caches/ee.64.xxx/_books/Deployment-guide-for-Microsoft-SharePoint-Server-2010_2/OEBPS/Text/Deployment%2520Guide%2520for%2520Microsoft%2520SharePoint%2520Server%25202010_split_000.htm, NSLocalizedDescription=The requested URL was not found on this server.}
但是文件存在于finder和终端列表中：
ls -l
total 6024
-rw-rw-r--@ 1 olgadalton staff 3925 Oct 11 2011 Deployment Guide for Microsoft SharePoint Server 2010_split_000.htm
权限也可以。