Error: (wrong-type-argument arrayp nil) on Windows

[davidshen84]

Hi,

• My system is Windows 10 64bit
• Emacs is GNU Emacs 25.3.1 (x86_64-w64-mingw32)

I installed markdown-preview-mode through the built-in package installer.

After I execute markdown-preview-mode, a webpage is opened with only one line, saying Markdown preview. On the Emacs *Message* buffer I got ====> Error: (wrong-type-argument arrayp nil).

One odd observation, after I started the preview mode, I cannot access most of the website. Chrome shows ERR_TUNNEL_CONNECTION_FAILED error. But after I exit Emacs, which automatically killed the WS process, I can browse as normal.

[equwal]

Same issue on SUSE, must be a portable issue. Came broken out of the box from Melpa.

[equwal]

Had to install eww's version:
https://github.com/niku/markdown-preview-eww