Add the ability to specify a default cache-control header of a bucket
There should be a way to specify a default cache-control header value of an entire bucket. Currently cache-control maxAge is hard coded to 3600 (1 hour). If you wish to change this, you have to manually specify a cache-control value for each object uploaded using the gcloud CLI.
I suggest a new global bucket preference that changes the default cache-control of all objects that DON'T have a custom cache-control value already provided. I.E. changing this bucket value changes all objects that have a null cache-control provided.