Generate repro URL:
$ python generate-test-url.py
This should output:
http://localhost:8000/fSeKiHqtklTyA0CDo_BkvOLPq2-r08PzzpfBjWO3lfs/rs:fill:32:32:1/g:no/aHR0cHM6Ly9jZG4u/c3N0YXRpYy5uZXQv/U2l0ZXMvc3RhY2tv/dmVyZmxvdy9JbWcv/ZmF2aWNvbi5pY28_/dj1lYzYxN2Q3MTUx/OTY.png
Working version (v3.0.0.beta1):
$ VERSION=beta1 docker-compose up --build
Visiting the above URL in this version should return:
Broken version (v3.0.0.beta2):
$ VERSION=beta2 docker-compose up --build