fix: mockWebxdc: set Content-Type header to fix strict-MIME block in proxied environments#8
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…ed environments
`res.end(src)` without a Content-Type header causes browsers to see an
empty MIME type. Under strict-MIME checking (GitHub Codespaces reverse
proxy, nginx with `X-Content-Type-Options: nosniff`) the script is
blocked with ERR_BLOCKED_BY_RESPONSE and `window.webxdc` is never set.
Fix: add `res.setHeader('Content-Type', 'application/javascript; charset=utf-8')`
before `res.end()` in `configureServer`. No behaviour change on localhost.
Reproduces reliably in any GitHub Codespace — open the app via the
forwarded-port URL and check the console.
Disclaimer: this commit was generated by the LLM Claude Sonnet 4.6. I verified myself both that it works and that it is the correct solution.
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res.end(src)without a Content-Type header causes browsers to see an empty MIME type. Under strict-MIME checking (GitHub Codespaces reverse proxy, nginx withX-Content-Type-Options: nosniff) the script is blocked with ERR_BLOCKED_BY_RESPONSE andwindow.webxdcis never set. Fix: addres.setHeader('Content-Type', 'application/javascript; charset=utf-8')beforeres.end()inconfigureServer. No behaviour change on localhost. Reproduces reliably in any GitHub Codespace — open the app via the forwarded-port URL and check the console.Disclaimer: This commit was generated by the LLM Claude Sonnet 4.6. I verified myself both that it works and that this is the correct solution.