[broven]

Fixes #140

Symptom

With Playwright >= 1.63, every humanized locator.click() on a normally sized visible element raises KeyError: 'received' in repl/human_input.py _border_width. Humanized fill() clicks first, so it fails too. A plain <button> is enough to trigger it.

Root cause

_border_width read computed CSS through Playwright's private Locator._impl_obj._expect('to.have.css', {regex '.*'}) and took result['received']. In Playwright 1.63, Frame._expect returns only {"matches": ...} when the expectation passes. received is filled in only on the failure path, and the .* regex always passes. CI and the dev env never hit this because uv.lock pinned 1.60.0, while pyproject says >=1.60.0, so a fresh install resolves to a newer version.

Fix

• human_input.py: the left/top border widths now come from the existing _browserwright_scroll selector engine (a contentScript engine, so it runs in Playwright's utility world and answers through a detached transport node). The no-main-world-JS guarantee stays intact, and nothing depends on a private result shape anymore. _border_width(locator, prop) (two _expect round trips) is replaced by _borders(locator), which gets both widths from one read. They are parsed with parseInt to match Playwright's own padding-relative offset, as before.
• uv.lock: playwright 1.60.0 -> 1.64.0, so the dev env and CI resolve the same Playwright a fresh install does. pyproject is unchanged. No new test: the existing tests/daemon/e2e/test_human_input.py already fails with this exact KeyError on 1.63 against the old code (shown below), so the lock bump turns it into the regression guard.

I did not add a fallback to native click on a failed read. The read now goes through the same transport that _wheel_into_view already depends on a moment earlier in the same click, so a fallback would only hide real faults.

Evidence

Issue repro (the exact two scripts from #140, 3 rounds each, --backend=cdp --create, run through this checkout on an isolated daemon: own facade/relay/CDP ports, XDG_RUNTIME_DIR, BS_HOME, BD_CONFIG="", uv run --with playwright==<v>):

main (4b54676), playwright 1.63.0:

  File "/private/tmp/bw-140-base/src/browserwright/repl/human_input.py", line 383, in _click
    border_x = _border_width(locator, 'border-left-width', budget)
  File "/private/tmp/bw-140-base/src/browserwright/repl/human_input.py", line 248, in _border_width
    received = result['received']
KeyError: 'received'
exit=1

this branch:

=== playwright 1.64.0
clicked button
clicked Learn more -> https://www.iana.org/help/example-domains
(x3)
exit=0
=== playwright 1.63.0
clicked button
clicked Learn more -> https://www.iana.org/help/example-domains
(x3)
exit=0

It also passed on 1.60.0, run before the lock bump.

Real-Chrome E2E, human input (tests/daemon/e2e/run.sh tests/daemon/e2e/test_human_input.py tests/daemon/e2e/test_human_input_no_focus.py -v):

	main	this branch
test_human_input.py, playwright 1.63.0	FAIL: KeyError: 'received' (via fill -> click -> _border_width)	PASS
both files, playwright 1.64.0 (new lock)	n/a	2 passed in 69.56s
both files, playwright 1.60.0	2 passed	2 passed

test_human_input.py covers bordered/positioned targets and asserts the real event coordinates, including the border offset, so the new border read is checked against the page's own getComputedStyle.

Note: test_human_input_no_focus.py is headful, and on a busy desktop it sometimes fails because another macOS app takes focus. Its focus log then shows windows.onFocusChanged [-1] (WINDOW_ID_NONE), never the session window. This happened on both main and this branch, and the test passes on rerun.

Fast gate (mise run test, on the 1.64.0 lock):

[test:evals]   ✓ 13/13 passed
[test:pi] ℹ pass 5
[test:pi] ℹ fail 0
[test:skill] 338 passed in 16.87s
[test:daemon] 981 passed, 105 skipped in 55.97s

mise run lint: All checks passed!

Not run: the full real-Chrome E2E suite (only the human-input files), and the extension backend against a daily Chrome (the human-input E2E uses the extension backend in Chrome for Testing).

🤖 Generated with Claude Code