fix(module-federation): check port availability before starting remote proxies #33871
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…e proxies When multiple MF dev servers run concurrently and share the same remote, they would both attempt to start proxies on the same port, causing EADDRINUSE errors. This fix checks if a port is already in use before attempting to start a proxy. If the port is occupied (likely by another MF dev server that started earlier), the proxy is skipped for that remote since it's already being served. Uses the existing `waitForPortOpen` utility with retries: 0 to perform an immediate check. Fixes #33470
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…e proxies (#33871) When multiple MF dev servers run concurrently and share the same remote, they would both attempt to start proxies on the same port, causing EADDRINUSE errors. This fix checks if a port is already in use before attempting to start a proxy. If the port is occupied (likely by another MF dev server that started earlier), the proxy is skipped for that remote since it's already being served. Uses the existing `waitForPortOpen` utility with retries: 0 to perform an immediate check. Fixes #33470 (cherry picked from commit 68d539c)
FrozenPandaz
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Dec 15, 2025
…e proxies (#33871) When multiple MF dev servers run concurrently and share the same remote, they would both attempt to start proxies on the same port, causing EADDRINUSE errors. This fix checks if a port is already in use before attempting to start a proxy. If the port is occupied (likely by another MF dev server that started earlier), the proxy is skipped for that remote since it's already being served. Uses the existing `waitForPortOpen` utility with retries: 0 to perform an immediate check. Fixes #33470 (cherry picked from commit 68d539c)
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When multiple MF dev servers run concurrently and share the same remote,
they would both attempt to start proxies on the same port, causing
EADDRINUSE errors.
This fix checks if a port is already in use before attempting to start
a proxy. If the port is occupied (likely by another MF dev server that
started earlier), the proxy is skipped for that remote since it's
already being served.
Uses the existing
waitForPortOpenutility with retries: 0 to performan immediate check.
Fixes #33470