Your SPA probably leaks memory. Your Playwright suite can catch it
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Practical technique for detecting memory leaks with Playwright, directly useful for web devs.
Summary
Playwright-soak is a new npm package that detects memory leaks in SPAs by repeating a user flow (e.g., opening/closing a drawer) dozens of times with forced GC between iterations, then analyzing the growth pattern rather than raw deltas. Unlike naive before/after heap comparisons that false-positive on caches or browser internals, it flags only leaks that accumulate steadily per iteration — catching the per-interaction subscriber or DOM node leaks that survive code review and standard e2e suites.