playwright.dev

Configure permitted automation to operate transparently within a site's published rate limits instead of evading bot detection

Choose between pixel-diff screenshot comparison and DOM/structural snapshot testing for catching visual regressions

Test an Electron app's multi-window behavior and main-process access using Playwright's _electron API

Automate elements inside cross-origin iframes with Playwright's frameLocator, understanding where site-isolation limits still apply

Run Playwright E2E tests through a real OAuth/OIDC redirect flow using a disposable test identity provider instead of production credentials

Load and test an unpacked Manifest V3 Chrome extension's popup, options page, and service worker in a Playwright test

Decide when Playwright's built-in device emulation is sufficient for mobile web testing versus when a real-device cloud is needed

Decide between Playwright's launchPersistentContext(userDataDir) and storageState() for reusing authenticated sessions across test runs

Make headless-browser file downloads deterministic by awaiting the download event/promise instead of polling the filesystem

Decide when to use Playwright component testing (@playwright/experimental-ct-*) versus full end-to-end tests for a given feature

Write Playwright locators that pierce open shadow roots to interact with nested web components

Debug a CI-only Playwright test failure by capturing and inspecting a trace.zip in Trace Viewer

Handle edge cases in Playwright route.fulfill()/route.fallback() network mocking, including handler chaining and forbidden header overrides

Use Playwright component testing's beforeMount/afterMount hooks and the experimental router fixture to inject configuration and mock network requests in a mounted component test

Run a headless Playwright script on a fixed schedule via cron or a systemd timer

Chain multiple Playwright route() handlers and use route.fallback() so a request not owned by one handler passes to the next matching handler instead of going to the network

poll a slow-updating backend value inside a playwright assertion using expect.poll instead of a manual retry loop

configure per-project locale and timezone emulation in playwright using use.locale and use.timezoneid

record video only for failed tests using playwright's use.video retain-on-failure option

open a playwright ci trace.zip artifact in the hosted trace viewer without downloading it locally

assert on websocket frames in a playwright test using page.waitforevent('websocket')

log in once via playwright's api request context and reuse its storagestate in a browser context to skip ui login

set up playwright component testing for a vue application using experimental-ct-vue

merge playwright blob reports from parallel ci shards into a single html report

dispatch synthetic touch gestures in a playwright mobile-emulated context using page.touchscreen

decide between raw cdp fetch-domain request interception and playwright's page.route() for mocking network requests

Configure a per-context proxy in Playwright

Intercept and rewrite outbound API responses in a Playwright test using route.fulfill() with a custom JSON body

Feed Playwright page.ariaSnapshot() output to an LLM agent loop as a token-efficient page observation

Record video mid-test on demand using Playwright page.screencast.start() and stop() (v1.59+)

Use the Playwright --ui flag to interactively watch, debug, and re-run tests during development

Emulate geolocation and grant browser permissions for location-aware feature testing in Playwright

Launch a Playwright persistent browser context with launchPersistentContext and userDataDir to reuse a browser profile

Shard a Playwright test suite across multiple CI machines using --shard

Configure Playwright to run the same tests across multiple browser projects (Chromium, Firefox, WebKit)

Write API-layer tests in Playwright using APIRequestContext alongside browser tests

Modify HTTP response headers mid-flight in Playwright using route.fulfill() with custom headers

Parse robots.txt and respect crawl-delay directives in a Playwright-based scraper

Set up Playwright component testing for a React application with @playwright/experimental-ct-react

Handle OAuth popup windows in Playwright by listening for the popup event before triggering the click

Intercept and mock WebSocket messages in Playwright using page.routeWebSocket()

Test and block service workers in Playwright to isolate network behavior

Set up rate-limited, ToS-compliant web scraping with Playwright using request queuing and polite delays

Record a HAR file in Playwright and replay it for deterministic offline test mocking

Generate and refine Playwright test scripts using the codegen recorder

Capture and analyze network requests during a Playwright test using request and response events

Automate file upload via a hidden file input element in Playwright

Generate a multi-page PDF from an HTML page using Playwright's page.pdf()

Run multi-user scenarios in a single Playwright test using parallel browser contexts

Use Playwright ARIA snapshot testing to detect accessibility-tree regressions

Automate interactions inside nested iframes and open shadow DOM in Playwright

Control timers and fake the system clock in Playwright tests using page.clock

Configure a corporate proxy for Playwright browser automation

Handle file downloads and uploads in Playwright tests

Interact with elements inside iframes and shadow DOM in Playwright

Persist browser authentication state to disk and reuse it across Playwright test runs to skip repeated login flows

Run headless browser tests reliably in CI containers, handling display server, font, and codec requirements

Set up stable screenshot visual diffing for pixel-level regression comparisons in Playwright

Emulate mobile devices in Playwright and Puppeteer using built-in device descriptors and understand their limits

Use Playwright's semantic locators (getByRole, getByText, getByLabel) and rely on built-in auto-waiting instead of manual sleeps

Choose between Puppeteer and Playwright, and migrate a Puppeteer script to Playwright

Use Playwright Trace Viewer and built-in debugging tools to diagnose and fix flaky tests

Automate an Electron application using Playwright's built-in Electron support

Intercept, inspect, and mock network requests in Playwright tests