use constrained chromium renderer processes

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "internet-performance-exporter",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "internet-performance-exporter",
-      "version": "0.1.1",
+      "version": "0.1.2",
       "dependencies": {
         "@cloudflare/speedtest": "1.14.0"
       },

package.json

@@ -1,6 +1,6 @@
 {
   "name": "internet-performance-exporter",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "private": true,
   "type": "module",
   "scripts": {

server.js

@@ -56,7 +56,7 @@ const run = () => {
   const token = randomUUID()
   let finish
   const done = new Promise(resolve => { let settled = false; finish = () => { if (!settled) { settled = true; resolve() } }; active = { token, resolve: finish } })
-  const child = spawn(chromium, ['--headless=new', '--no-sandbox', '--no-zygote', '--single-process', '--disable-gpu', '--disable-dev-shm-usage', '--dump-dom', `http://127.0.0.1:${port}/run/${token}`], { stdio: 'ignore' })
+  const child = spawn(chromium, ['--headless=new', '--no-sandbox', '--disable-gpu', '--disable-dev-shm-usage', '--renderer-process-limit=1', '--dump-dom', `http://127.0.0.1:${port}/run/${token}`], { stdio: 'ignore' })
   const timer = setTimeout(() => { result.up = 0; finish() }, timeout)
   child.on('error', () => { result.up = 0; finish() })
   child.on('exit', () => { if (active) { result.up = 0; finish() } })