The replay buffer can contain DA1/DA2 terminal attribute responses
(e.g., \x1b[?1;10;0c) that were captured before filtering was added
to the session classes. These responses appear as visible text like
'1;10;0c' when sent to the client on reconnect.
This adds an additional filter pass when sending the replay buffer,
ensuring no DA1 responses reach the client regardless of when they
were captured.
Test fixes:
- Fix app_session.py to use 'textual-webterm' package name (not 'textual-web')
- Fix CLI version test to not hardcode version number
- Fix static path test to not use removed Path._flavour attribute
Removed unused dependencies:
- xdg
- msgpack
- httpx
All 209 tests pass with 86% coverage.
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