404 error on preview ... "buffer_id(29) is not valid (closed or unsupported file format)"

利用sublime text3的插件OmniMarkupPreview进行md文件预览时，经常出现以下错误

"Error: 404 Not Found
Sorry, the requested URL 'http://127.0.0.1:51004/view/29' caused an error:

'buffer_id(29) is not valid (closed or unsupported file format)'

有两个方法可以快速修复

Quick Fix 1: Remove Strikethrough Extension

Sublime Text > Preferences > Package Settings > OmniMarkupPreviewer > Settings - User
paste the following to remove the strikeout package.

{
"renderer_options-MarkdownRenderer": {
"extensions": ["tables", "fenced_code", "codehilite"]
}
}
Quick Fix 2: Fix the Strikethrough Extension (if you need it)

Find the python-markdown sublime package.

On the Mac: subl "/Users/<username>/Library/Application Support/Sublime Text 3/Packages/OmniMarkupPreviewer/OmniMarkupLib/Renderers/libs/mdx_strikeout.py"

Replace the makeExtension() method with the following:

def makeExtension(*args, **kwargs):
return StrikeoutExtension(*args, **kwargs)
Save, quit and reload Sublime Text.

原始链接

经验证，fix1 大部分情况下可用，今天（2017-01-16）fix1 居然挂了，fix2 可用

2017-02-18更新

今天终于弄明白了下面两种修复方法的区别，

1. fix1 强制去除

strikeout

渲然，会少一些格式，如删除线 aaaaa

2. fix2 解除了此bug, 但是需要修改源代码，小白们可能不会操作我的文件

，把最下面代码换了重启就行