http2-proxy local dev certificate error

[forresto]

I'm proxying some routes to another snowpack dev server. I had to add the rejectUnauthorized: false, since our local dev certificates are self-signed.

The error callback was helpful for figuring this out as well.

  routes: [
    // This allows us to locally test /@username/project-id URLs.
    {
      src: "/@.*/.*",
      dest: (req, res) => {
        console.log("Proxy: " + req.url);
        return proxy.web(
          req,
          res,
          {
            protocol: "https",
            hostname: "localhost.example.com",
            port: 8000,
            // Needed b/c we self-sign certificates on local dev
            rejectUnauthorized: false,
          },
          function (error, req, res) {
            if (!error) return;
            console.log("proxy error", error);
            if (!res.headersSent) {
              res.writeHead(500, { "content-type": "application/json" });
            }
            const json = { error: "proxy_error", message: error.message };
            res.end(JSON.stringify(json));
          }
        );
      },
    },
    {
      match: "routes",
      src: ".*",
      dest: "/index.html",
    },
  ],

Posting for searchability.