diff --git a/test-e2e/config-loading.test.ts b/test-e2e/config-loading.test.ts
new file mode 100644
index 0000000..8b249fb
--- /dev/null
+++ b/test-e2e/config-loading.test.ts
@@ -0,0 +1,48 @@
+import { testSubdomainRouting as test, expect } from './fixtures/config-test-fixtures.js'
+import { getConfig, setConfig } from './fixtures/set-sw-config.js'
+import { waitForServiceWorker } from './fixtures/wait-for-service-worker.js'
+import type { ConfigDb } from '../src/lib/config-db'
+
+test.describe('/#/ipfs-sw-config', () => {
+  const testConfig: ConfigDb = {
+    gateways: [process.env.KUBO_GATEWAY as string, 'http://example.com'],
+    routers: [process.env.KUBO_GATEWAY as string, 'http://example.com/routing/v1'],
+    dnsJsonResolvers: {
+      '.': 'example.com/dns-query'
+    },
+    debug: 'testDebug',
+    enableWss: false,
+    enableWebTransport: true,
+    enableRecursiveGateways: false,
+    enableGatewayProviders: false
+  }
+  test('setting the config actually works', async ({ page, baseURL }) => {
+    await page.goto(baseURL, { waitUntil: 'networkidle' })
+    await waitForServiceWorker(page)
+
+    await setConfig({ page, config: testConfig })
+    expect(await getConfig({ page })).toEqual(testConfig)
+  })
+
+  test('root config is propagated to subdomain', async ({ page, baseURL, rootDomain, protocol }) => {
+    await page.goto(baseURL, { waitUntil: 'networkidle' })
+    await waitForServiceWorker(page)
+    // set the config on the root..
+    await setConfig({
+      page,
+      config: testConfig
+    })
+    const rootConfig = await getConfig({ page })
+
+    // now query a new subdomain and make sure that the config on this page is the same as the root after the page loads
+    await page.goto(`${protocol}://bafkqablimvwgy3y.ipfs.${rootDomain}/`, { waitUntil: 'networkidle' })
+
+    // now get the config from the subdomain
+    await waitForServiceWorker(page)
+    const subdomainConfig = await getConfig({ page })
+
+    // ensure it equals the root config
+    expect(subdomainConfig).toEqual(rootConfig)
+    expect(subdomainConfig).toEqual(testConfig)
+  })
+})
diff --git a/test-e2e/fixtures/set-sw-config.ts b/test-e2e/fixtures/set-sw-config.ts
index cb953bd..958b620 100644
--- a/test-e2e/fixtures/set-sw-config.ts
+++ b/test-e2e/fixtures/set-sw-config.ts
@@ -59,7 +59,7 @@ export async function setConfig ({ page, config }: { page: Page, config: Partial
       }
     })
     const db = await openDb()
-    const put = async (key, value): Promise<void> => {
+    const put = async (key: keyof ConfigDb, value): Promise<void> => {
       const transaction = db.transaction(storeName, 'readwrite')
       const store = transaction.objectStore(storeName)
       const request = store.put(value, key)
@@ -88,6 +88,49 @@ export async function setConfig ({ page, config }: { page: Page, config: Partial
   })
 }
 
+export async function getConfig ({ page }: { page: Page }): Promise<ConfigDb> {
+  const config: ConfigDb = await page.evaluate(async () => {
+    const dbName = 'helia-sw'
+    const storeName = 'config'
+    const openDb = async (): Promise<IDBDatabase> => new Promise((resolve, reject) => {
+      const request = indexedDB.open(dbName, 1)
+      request.onerror = () => { reject(request.error) }
+      request.onsuccess = () => { resolve(request.result) }
+      request.onupgradeneeded = (event) => {
+        const db = request.result
+        db.createObjectStore(storeName)
+      }
+    })
+    const db = await openDb()
+    const get = async (key): Promise<any> => {
+      const transaction = db.transaction(storeName, 'readonly')
+      const store = transaction.objectStore(storeName)
+      const request = store.get(key)
+      return new Promise((resolve, reject) => {
+        request.onerror = () => { reject(request.error) }
+        request.onsuccess = () => { resolve(request.result) }
+      })
+    }
+
+    const config: ConfigDb = {
+      gateways: await get('gateways'),
+      routers: await get('routers'),
+      dnsJsonResolvers: await get('dnsJsonResolvers'),
+      enableWss: await get('enableWss'),
+      enableWebTransport: await get('enableWebTransport'),
+      enableRecursiveGateways: await get('enableRecursiveGateways'),
+      enableGatewayProviders: await get('enableGatewayProviders'),
+      debug: await get('debug')
+    }
+
+    db.close()
+
+    return config
+  }, {})
+
+  return config
+}
+
 export async function setSubdomainConfig ({ page, config }: { page: Page, config: Partial<ConfigDb> }): Promise<void> {
   await waitForServiceWorker(page)