i encountered this problem when trying to use SSR on my meteor app. i cannot find any valid answer on this problem. So i solved it myself.
clone https://github.com/meteor/blaze/tree/master/packages/static-html on to your local packages folder.
go to static-html.js
change this:
Plugin.registerCompiler({
extensions: ['html'],
archMatching: 'web',
...
to this
Plugin.registerCompiler({
filenames: ['main.html'], //our main html file
archMatching: 'web',
...
And we’re good to go. We only need static-html on specific pages like main.html, not all html files, so this will solve our problem.