diff --git a/__tests__/cases/non-parallel/empty-project.ts b/__tests__/cases/non-parallel/empty-project.ts
index 36df11e..c06f748 100644
--- a/__tests__/cases/non-parallel/empty-project.ts
+++ b/__tests__/cases/non-parallel/empty-project.ts
@@ -1,8 +1,9 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import { getTextContent, sleep } from '../../utils'
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/GitakoExtension/test-empty'))
+  beforeAll(() => page.goto(testURL`https://github.com/GitakoExtension/test-empty`))
 
   it('should render error message', async () => {
     await sleep(5000)
diff --git a/__tests__/cases/non-parallel/pjax.commits-page.ts b/__tests__/cases/non-parallel/pjax.commits-page.ts
index 8dddf46..d910a03 100644
--- a/__tests__/cases/non-parallel/pjax.commits-page.ts
+++ b/__tests__/cases/non-parallel/pjax.commits-page.ts
@@ -1,10 +1,11 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import { expectToFind, expectToNotFind, sleep, waitForRedirect } from '../../utils'
 
 jest.retryTimes(3)
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/EnixCoda/Gitako/commits/develop'))
+  beforeAll(() => page.goto(testURL`https://github.com/EnixCoda/Gitako/commits/develop`))
 
   it('should not break go back in history', async () => {
     for (let i = 0; i < 3; i++) {
diff --git a/__tests__/cases/non-parallel/pjax.files-page.ts b/__tests__/cases/non-parallel/pjax.files-page.ts
index 02d2e4e..97da75f 100644
--- a/__tests__/cases/non-parallel/pjax.files-page.ts
+++ b/__tests__/cases/non-parallel/pjax.files-page.ts
@@ -1,10 +1,11 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import { expectToFind, expectToNotFind, sleep, waitForRedirect } from '../../utils'
 
 jest.retryTimes(3)
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/EnixCoda/Gitako/tree/develop/src'))
+  beforeAll(() => page.goto(testURL`https://github.com/EnixCoda/Gitako/tree/develop/src`))
 
   it('should not break go back in history', async () => {
     for (let i = 0; i < 3; i++) {
diff --git a/__tests__/cases/non-parallel/pjax.general.ts b/__tests__/cases/non-parallel/pjax.general.ts
index 96dd63d..46f51bd 100644
--- a/__tests__/cases/non-parallel/pjax.general.ts
+++ b/__tests__/cases/non-parallel/pjax.general.ts
@@ -1,4 +1,5 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import {
   collapseFloatModeSidebar,
   expandFloatModeSidebar,
@@ -11,7 +12,7 @@ import {
 jest.retryTimes(3)
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/EnixCoda/Gitako/tree/develop/src'))
+  beforeAll(() => page.goto(testURL`https://github.com/EnixCoda/Gitako/tree/develop/src`))
 
   it('should work with PJAX', async () => {
     await sleep(3000)
diff --git a/__tests__/cases/non-parallel/pjax.internal.ts b/__tests__/cases/non-parallel/pjax.internal.ts
index 58625cb..7c327d3 100644
--- a/__tests__/cases/non-parallel/pjax.internal.ts
+++ b/__tests__/cases/non-parallel/pjax.internal.ts
@@ -1,4 +1,5 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import {
   expandFloatModeSidebar,
   expectToFind,
@@ -11,7 +12,7 @@ import {
 jest.retryTimes(3)
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/EnixCoda/Gitako/tree/test/multiple-changes'))
+  beforeAll(() => page.goto(testURL`https://github.com/EnixCoda/Gitako/tree/test/multiple-changes`))
 
   it('should work with PJAX', async () => {
     await sleep(3000)
diff --git a/__tests__/cases/non-parallel/project-page.gitako.ts b/__tests__/cases/non-parallel/project-page.gitako.ts
index 0a7c68a..dd1e13e 100644
--- a/__tests__/cases/non-parallel/project-page.gitako.ts
+++ b/__tests__/cases/non-parallel/project-page.gitako.ts
@@ -1,11 +1,14 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import { expandFloatModeSidebar, expectToFind, expectToNotFind, scroll } from '../../utils'
 
 jest.retryTimes(3)
 
 describe(`in Gitako project page`, () => {
   beforeAll(() =>
-    page.goto('https://github.com/EnixCoda/Gitako/tree/test/200-changed-files-200-lines-each'),
+    page.goto(
+      testURL`https://github.com/EnixCoda/Gitako/tree/test/200-changed-files-200-lines-each`,
+    ),
   )
 
   it('should render Gitako', async () => {
diff --git a/__tests__/cases/parallel/baseline.ts b/__tests__/cases/parallel/baseline.ts
index a8e7a74..850a087 100644
--- a/__tests__/cases/parallel/baseline.ts
+++ b/__tests__/cases/parallel/baseline.ts
@@ -2,10 +2,11 @@
  * Confirm basic behaviors of puppeteer assertions
  */
 
+import { testURL } from '../../testURL'
 import { expectToFind, expectToNotFind } from '../../utils'
 
 describe(`in random page`, () => {
-  beforeAll(() => page.goto('https://google.com'))
+  beforeAll(() => page.goto(testURL`https://google.com`))
 
   it('wait for hidden non-exist element should resolve null', async () => {
     expect(
diff --git a/__tests__/cases/parallel/expand-to-target.ts b/__tests__/cases/parallel/expand-to-target.ts
index 58f588c..6f551d2 100644
--- a/__tests__/cases/parallel/expand-to-target.ts
+++ b/__tests__/cases/parallel/expand-to-target.ts
@@ -1,8 +1,9 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import { expectToFind, sleep, waitForRedirect } from '../../utils'
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/EnixCoda/Gitako/tree/develop/src'))
+  beforeAll(() => page.goto(testURL`https://github.com/EnixCoda/Gitako/tree/develop/src`))
 
   it('expand to target on load and after redirect', async () => {
     await sleep(3000)
diff --git a/__tests__/cases/parallel/homepage.not-render.ts b/__tests__/cases/parallel/homepage.not-render.ts
index 8d67007..64c531e 100644
--- a/__tests__/cases/parallel/homepage.not-render.ts
+++ b/__tests__/cases/parallel/homepage.not-render.ts
@@ -1,7 +1,8 @@
+import { testURL } from '../../testURL'
 import { expectToNotFind } from '../../utils'
 
 describe(`in GitHub homepage`, () => {
-  beforeAll(() => page.goto('https://github.com'))
+  beforeAll(() => page.goto(testURL`https://github.com`))
 
   it('should not render Gitako', async () => {
     await expectToNotFind('.gitako-side-bar .gitako-side-bar-body-wrapper')
diff --git a/__tests__/cases/parallel/pull-request-page.gitako.ts b/__tests__/cases/parallel/pull-request-page.gitako.ts
index d2cac5a..d09424b 100644
--- a/__tests__/cases/parallel/pull-request-page.gitako.ts
+++ b/__tests__/cases/parallel/pull-request-page.gitako.ts
@@ -1,8 +1,9 @@
 import { selectors } from '../../selectors'
+import { testURL } from '../../testURL'
 import { expectToFind } from '../../utils'
 
 describe(`in Gitako project page`, () => {
-  beforeAll(() => page.goto('https://github.com/EnixCoda/Gitako/pull/71'))
+  beforeAll(() => page.goto(testURL`https://github.com/EnixCoda/Gitako/pull/71`))
 
   it('should render Gitako', async () => {
     await expectToFind(selectors.gitako.bodyWrapper)
diff --git a/__tests__/testURL.ts b/__tests__/testURL.ts
new file mode 100644
index 0000000..f85cbc1
--- /dev/null
+++ b/__tests__/testURL.ts
@@ -0,0 +1,11 @@
+// string template function, take input URL string and add a search param
+// example: url`http://g.com` => `http://g.com?k1=v1`
+export function testURL(strings: TemplateStringsArray, ...values: unknown[]) {
+  const raw = strings.reduce((acc, str, i) => acc + str + (values[i] ?? ''), '')
+  const url = new URL(raw, 'http://localhost')
+  url.searchParams.append(
+    'gitako-config-accessToken',
+    JSON.stringify(process.env.GITAKO_ACCESS_TOKEN ?? 'fallback_token'),
+  )
+  return url.href
+}
diff --git a/src/utils/config/helper.ts b/src/utils/config/helper.ts
index 8092378..6b11989 100644
--- a/src/utils/config/helper.ts
+++ b/src/utils/config/helper.ts
@@ -76,7 +76,7 @@ export const getDefaultConfigs: () => Config = () => ({
 
 const configKeyArray = Object.values(configKeys)
 
-function applyDefaultConfigs(configs: Partial<Config>) {
+function applyDefaultConfigs(configs: Partial<Config> = {}) {
   const defaultConfigs = getDefaultConfigs()
   return configKeyArray.reduce((applied, key) => {
     Object.assign(applied, { [key]: key in configs ? configs[key] : defaultConfigs[key] })
@@ -94,15 +94,45 @@ const updateConfigRef = async (config: Partial<Config>) => {
 const configMigration = migrateConfig()
 configMigration.then(async () => updateConfigRef(await get()))
 
+let loadedConfigFromURL = false
+
+function getConfigFromURL() {
+  const config: Partial<Config> = {}
+  // config params pattern:
+  // ?gitako-config-<key>=<json-value>
+  new URLSearchParams(window.location.search).forEach((value, key) => {
+    if (key.match(/^gitako-config-/)) {
+      const configKey = key.replace(/^gitako-config-/, '')
+      if (configKey in configKeys) {
+        try {
+          config[configKeys[configKey as configKeys]] = JSON.parse(value)
+          loadedConfigFromURL = true
+        } catch (error) {
+          throw new Error(`Failed to parse config "${configKey}" from URL: ${value}`, {
+            cause: error,
+          })
+        }
+      } else {
+        console.warn(`Unknown config "${configKey}" from URL: ${value}`)
+      }
+    }
+  })
+
+  return config
+}
+
 async function get(): Promise<Config> {
   await configMigration
-  const config = await storageHelper.get<Record<string, Config>>([platformStorageKey])
-  return applyDefaultConfigs(config?.[platformStorageKey] || {})
+  const savedConfig = (await storageHelper.get<Record<string, Config>>([platformStorageKey]))?.[
+    platformStorageKey
+  ]
+  const configFromURL = getConfigFromURL()
+  return applyDefaultConfigs({ ...savedConfig, ...configFromURL })
 }
 
 async function set(config: Config) {
   updateConfigRef(config)
-  return await storageHelper.set({ [platformStorageKey]: config })
+  if (!loadedConfigFromURL) await storageHelper.set({ [platformStorageKey]: config })
 }
 
 export const configHelper = { get, set }
diff --git a/tsconfig.json b/tsconfig.json
index 7f2ad7b..81af31e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,7 +5,7 @@
     "target": "ESNext",
     "jsx": "react",
     "strict": true,
-    "lib": ["dom", "es2017.object", "es2016", "ES2019.Array", "ES2020.String"],
+    "lib": ["dom", "es2017.object", "es2016", "ES2019.Array", "ES2020.String", "ES2022.Error"],
     "baseUrl": "src",
     "resolveJsonModule": true,
     "allowSyntheticDefaultImports": true,