Leading slash is added when using @cypress/instrument-cra for `react-scripts build` with PUBLIC_URL without leading slash defined

[cypress-io]

Leading slash is added when using @cypress/instrument-cra for `react-scripts build` with PUBLIC_URL without leading slash defined

[RichieRunner]

Bump on this issue. @TomaszG have you been able to resolve this?
This pathing issue is causing my NP builds to not work in CI environments. I guess this instrumentation package is only ideal for local usage.

[TomaszG]

The solution is to use sed command run after build on build output files :) In my project we build the project with PUBLIC_URL=PUBLIC_URL_PLACEHOLDER and we replace the PUBLIC_URL_PLACEHOLDER before start script (with custom docker-entrypoint.sh) so we have an option to run the app under different base paths, without rebuilding the app image.

For an easy solution you can try building the app with PUBLIC_URL=PUBLIC_URL_PLACEHOLDER and adding postbuild script like this: PUBLIC_URL=test find ./build -type f -exec sed -i -e "s|/PUBLIC_URL_PLACEHOLDER/|$PUBLIC_URL/|g" {} \;

I'm on my phone currently, so I'm not able to tell if everything is correct, however, this should help you get the idea.