PR #8 introduced a 7-second setTimeout delay for API posts but left the async function call unhandled. Unhandled promise rejections fail silently in setTimeout callbacks, breaking all API submissions.

Changes:

• Added .catch() handler to postToMeshMapperAPI() call in sendPing()
• Logs errors with context: "Delayed API post failed:"

// Before: Promise rejection silently fails
setTimeout(() => {
  postToMeshMapperAPI(lat, lon);
}, MESHMAPPER_API_DELAY_MS);

// After: Errors properly caught and logged
setTimeout(() => {
  postToMeshMapperAPI(lat, lon).catch(err => {
    console.error("Delayed API post failed:", err);
  });
}, MESHMAPPER_API_DELAY_MS);

The 7-second delay (for mesh propagation) is preserved. Internal try-catch in postToMeshMapperAPI handles expected errors; this catches promise-level failures.

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.