How to Fix Random Blank Screenshots with chrome-remote-interface
Fix blank chrome-remote-interface screenshots by validating the target, waiting for rendering, and using the right CDP capture sequence.
Engineering
Puppeteer, Playwright, Selenium and headless Chrome, and what they take to run well.
How to Fix Chrome DevTools Network.setRequestInterception Errors
Replace deprecated Network.setRequestInterception with Fetch.enable, resolve every paused request, and avoid the hangs and protocol errors that follow.
How to Track Client-Side Navigation with DevTools Page.frameNavigated
`Page.frameNavigated` does not report every SPA route change. Use `Page.navigatedWithinDocument` for History API and fragment navigation, and filter events by frame.
Why Selenium WebDriver Cannot Find an Element That Selenium IDE Finds
Selenium IDE waits and switches context for you. Learn why WebDriver misses the same element and how to fix timing, frames, windows, shadow DOM, and locators.
What Chrome Headless’s –service-request-channel-token Means
Learn what Chrome’s service-request-channel-token does, why it appears in headless processes, and why you should not configure it.
How to Intercept Image Requests in Headless Chrome
Block, mock, or allow image requests in Puppeteer and Playwright without hanging pages. Includes interception patterns, edge cases, debugging, and ScreenshotNeo.
State of Web Scraping Report 2026
Web scraping in 2026 is becoming AI-assisted, continuously maintained and more regulated, while scraping attacks and agent traffic keep rising.
How to Capture Long Pages When ChromeDriver Exceeds Tile Memory Limits
Use bounded Chrome DevTools Protocol slices, stitch them safely, and avoid ChromeDriver full-page memory failures on very long pages.
Reducing Proxy Usage with Reconnection Strategies
Reuse proxy connections safely, tune idle timeouts per hop, and retry only when application semantics make repetition safe.
How to Share Credentials Securely with Headless Chrome
Use isolated browser profiles, least-privilege secrets, private DevTools endpoints, and short-lived access to automate Chrome without leaking logins.
Best Practices for Scaling Web Scraping
Scale a crawler with queues, per-domain limits, bounded retries, and clear data controls. Learn how to monitor load and choose between workers and managed services.
Why wkhtmltopdf Works for Some Websites but Not Others
wkhtmltopdf uses an old Qt WebKit engine, so modern CSS, JavaScript, fonts, timing and build differences explain why pages render inconsistently.
Why Puppeteer Needs –no-sandbox in Cloud Functions
Understand why Puppeteer fails to start in Cloud Functions, when --no-sandbox is unsafe, and how to deploy Chrome with a working sandbox.
What Are Microservices?
Microservices split an application into independently deployable services around business capabilities. Learn how they differ from a monolith, what they cost, and when they fit.
Why Headless Selenium Makes WhatsApp Web Request a Chrome Update
The warning does not prove headless Chrome is outdated. Learn how to verify the browser, driver, profile, and network conditions safely.
Real-Time Web Scraping: A Practical Low-Latency Guide
Design real-time web scraping around freshness, end-to-end latency, browser readiness, concurrency, streaming limits, and measurable cost.
Why ChromeDriver Starts Multiple Chrome Processes and How to Fix It
Several Chrome processes are usually normal. Learn how ChromeDriver sessions work, find real leaks, and clean them up reliably with Selenium.
Why Playwright Test Timeouts Are Skipped and How to Fix Them
Learn why Playwright reports skipped tests, how timeout scopes differ, and how to fix annotations, filters, fixtures, assertions, and browser actions.