Pyodide server configuration to correctly serve application/wasm

.htaccess

# Apache Web Server

RewriteEngine off
Options -ExecCGI +Indexes
IndexOrderDefault Descending Date

Header always set Access-Control-Allow-Origin "*"
Header always set Access-Control-Allow-Methods GET

<FilesMatch "\.py$">
        Options +Indexes -ExecCGI -Multiviews
        Order allow,deny
        Allow from all
        RemoveHandler .py
        AddType text/plain .py
</FilesMatch>

<FilesMatch "\.data$">
        Options +Indexes -ExecCGI -Multiviews
        Order allow,deny
        Allow from all
        RemoveHandler .data
        AddType application/octet-stream .data
</FilesMatch>

<FilesMatch "\.wasm$">
        Options +Indexes -ExecCGI -Multiviews
        Order allow,deny
        Allow from all
        RemoveHandler .wasm
        AddType application/wasm .wasm
</FilesMatch>

app.yaml

# Google App Engine

runtime: python27
api_version: 1

handlers:
- url: /myapp/s/(.*\.wasm)$
  static_files: myapp/\1
  upload: myapp/.*\.wasm$
  mime_type: application/wasm