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⚡ AI Lessons
Dev.to · web4browser
⚡ AI Lesson
2w ago
Stop Playwright Before It Uses the Wrong Browser Profile
A Playwright script can pass every local check and still run in the wrong browser environment. The...
Dev.to · web4browser
⚡ AI Lesson
3w ago
Playwright Browser Profile Drift: What to Check Before a Task Fails
If a Playwright task worked yesterday and fails today, the first thing you may check is the...
Dev.to · web4browser
🛠️ AI Tools & Apps
⚡ AI Lesson
3w ago
Adding Release Gates to AI Browser Automation Runs With Real Profiles
A Playwright task can pass locally and still fail in a team run. It may open the wrong persistent...
Dev.to · web4browser
🔧 Backend Engineering
⚡ AI Lesson
4w ago
Design Browser Profile Permissions Before Automation Runs
Browser automation does not always fail because the script is wrong. Sometimes the script opens the...
Dev.to · web4browser
⚡ AI Lesson
1mo ago
Designing Browser Profile Leases for Multi-Worker Automation
A stale lock is a recovery problem. A profile lease is a runtime design problem. This builds on an...
Dev.to · web4browser
⚡ AI Lesson
1mo ago
Cookie vs Session vs Browser Profile: What Breaks in Real Automation Workflows
A browser automation task can fail even when the cookie is still there. That sounds strange until...
Dev.to · web4browser
⚡ AI Lesson
1mo ago
What a Browser Profile Actually Stores in Multi-Account Automation
Many browser automation bugs look like login bugs at first. The script opens the page. The account...
Dev.to · web4browser
🔧 Backend Engineering
⚡ AI Lesson
1mo ago
My Playwright Proxy Worked, but Login Still Failed
I used to treat a passing IP check as a green light. If Playwright showed the expected proxy IP, I...
Dev.to · web4browser
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
Why AI Browser Agents Need a Runbook Before They Need More Prompts
When an AI browser agent fails, the first instinct is often to rewrite the prompt. Make it...
Dev.to · web4browser
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
Designing an Account Context Manifest for AI Browser Agents
Your AI browser agent can open a page. It can click buttons. It can fill forms. It can even...
Dev.to · web4browser
⚡ AI Lesson
2mo ago
Playwright Proxy Debugging: Why Your Script Works Locally but Fails With Proxies
A Playwright script can look stable until a proxy enters the workflow. Without a proxy, the page...
Dev.to · web4browser
⚡ AI Lesson
2mo ago
Browser Profile Isolation Failure Diagnosis for Developers
A browser automation problem does not always look like a browser automation problem. Sometimes the...
Dev.to · web4browser
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
AI Agent Browser Automation: Why Headless Scripts Are Not Enough for Real Workflows
Most developers meet browser automation through a clean demo. Open a page. Click a button. Fill a...
Dev.to · web4browser
⚡ AI Lesson
2mo ago
When Browser Automation Should Not Run Fully Headless
Headless browser automation is attractive for one simple reason: it removes friction. No visible...
Dev.to · web4browser
⚡ AI Lesson
2mo ago
Why Browser Automation Teams Need Account-Aware Execution, Not Just Scripts
Browser automation often starts with a simple goal: open a page, click a button, fill a form, collect...
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