Running the CLI from source (tsx dev script, as CI's smoke job does)
transpiles with keepNames, which rewrites named inner functions in
serialized page closures into __name(...) calls — a helper that exists
in the Node bundle but not in the browser realm. The unified seek
closure was the first validate-path page function with named inner
functions, so 'hyperframes validate' threw '__name is not defined' in
CI while the dist build worked. Every session opener now installs a
no-op __name shim via evaluateOnNewDocument before any page script
runs, immunizing all serialized closures regardless of build mode.
Miguel Angel Simon Sierra
2ceb0683a8