Codebase indexing handshake failed, march 21, 2025

I usually use sonnet 3.7 or 3.7 max my cursorignore file is like

# Add directories or file patterns to ignore during indexing (e.g. foo/ or *.csv)
# Data files
**/*.ndjson
**/*.json
**/*.csv
**/*.parquet
**/*.feather
**/*.arrow
**/*.pickle
**/*.pkl
**/*.db
**/*.sqlite
**/*.sqlite3

!configs/**/*.json
!configs/**/*.ndjson
!langgraph.json


# Binary and image files
**/*.bin
**/*.dat
**/*.jpg
**/*.jpeg
**/*.png
**/*.gif
**/*.bmp
**/*.tiff
**/*.ico
**/*.svg

# Log and cache files
**/*.log
**/*.log.*
**/*.cache
**/*.tmp
**/*.temp
**/.pytest_cache/
**/__pycache__/
**/.ipynb_checkpoints/

# Environment and configuration
**/.env
**/.venv/
**/env/
**/venv/
**/.idea/
**/.vscode/
**/.DS_Store

# Build and distribution directories
**/dist/
**/build/
**/*.egg-info/
**/node_modules/

# Large model files
**/*.model
**/*.bin
**/*.h5
**/*.ckpt
**/*.pt
**/*.pth
**/*.onnx
**/*.tfmodel
**/*.pb

This from tech support at Cursor:

  1. Open Cursor Settings (Cmd/Ctrl + ,)

  2. Search for “http2”

  3. Set “cursor.general.disableHttp2” to true

  4. Restart Cursor

I have not tried it yet but will the next time I get this error.

P.S. I am on Proton VPN which seems to matter, so turning off VPN might also solve this problem.

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