Developer Note: imgix defaults the Cache TTL Behavior mode for all new Google Cloud Storage Sources to "Enforce minimum". This applies a max-age=1yr, public to all files whether they have a header or not. This is done to ensure that caching works on all files.
If you have already set Cache-Control headers on your asset files, you can change the Cache TTL Behavior setting to "Respect origin" via the Edit Source page post-Source-deployment.
To learn more, visit our documentation, [https://docs.imgix.com/setup/creating-sources/google-cloud-storage](https://docs.imgix.com/setup/creating-sources/google-cloud-storage).