如果没有连接到互联网，则无法访问 Opera 中的开发人员工具
我注意到，当处于离线模式（计算机未连接到互联网）时，Opera 中的开发人员工具（又名 Dragonfly）无法访问。当从菜单中选择它们时，Opera 想了一会儿然后显示连接错误。
有没有办法在不连接互联网的情况下使用开发者工具？
I have noticed that when being in offline mode (the computer is not connected to the Internet), Developer Tools (AKA Dragonfly) in Opera are not accessible. When choosing them from the menu, Opera thinks for a while then displays a connection error.
Is there any way to use Developer Tools without being connected to Internet?
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正如 Dragonfly 文档中所述，它应该缓存在持久缓存中。
但如果不是，那么您可以尝试从 https:// /dragonfly.opera.com/app/zips/，解压并将其 url 添加到
opera:config#DeveloperTools|DeveloperToolsURL（这是要粘贴到位置栏中的地址，但 SO 不会我想将其输出为链接，因为它前面没有http，我想）。这是链接： http://my.opera.com/haavard/blog/2008/05/07/opera-dragonfly-is-here-and-it-works-offline 文章描述了这一点
As stated in Dragonfly documentation, it should be cached in persistent cache.
But if it is not, then you could try to download actual release of dragonfly to your computer from https://dragonfly.opera.com/app/zips/, unzip and add it's url to
opera:config#DeveloperTools|DeveloperToolsURL(that's addres to paste in location bar, but SO doesn't want to output it as link because it has not http in front, I think).Here is link: http://my.opera.com/haavard/blog/2008/05/07/opera-dragonfly-is-here-and-it-works-offline with article describing that
Opera Dragonfly 现已转而使用 HTML5 AppCache，因此现在应该可以按预期工作。
Opera Dragonfly has now moved to use HTML5 AppCache, so this should work as expected now.