[server] listening on http://127.0.0.1:9876
[server] open http://localhost:9876/merchant.html
[server] GET  /merchant.html
[server] GET  /favicon.ico
[server] HEAD /v1/pay
[server] HEAD /v2/pay
[server] GET  /v2/manifest.json
[server] GET  /v1/app.json

==================================================================
[!!] BUG TRIGGERED: browser fetched /v1/app.json
[!!] 'app.json' was resolved against the merchant-supplied
[!!] pre-redirect URL /v1/pay instead of the manifest's own
[!!] location /v2/manifest.json.
==================================================================

[server] GET  /v1/icon.png
[server] 404 for /v1/icon.png