Console clearing removes CRA’s own warnings

Created by: denis-sokolov

react-scripts start continuous scrollback clearing (#2495 (closed)) clears the warnings CRA itself prints. Here is a visual demonstration slowed down:

On a faster setup it is near impossible to read the warning before it disappears.

Platform: node 10.15.3, npm 6.9.0 Search terms: clear, console, warning, 2495.

Steps to Reproduce

1. npx create-react-app my-app foo --typescript
2. cd foo
3. Delete allowSyntheticDefaultImports option in tsconfig.json
4. npm start

Expected Behavior

Ideally react-scripts would not clear the scrollback (#2495 (closed)) and let the user see the logs of what happened in the past. Given the resolution of that issue this is unlikely.

Alternatively, react-scripts should take a lot of care to not clear its own warnings.