When editing a custom .css.liquid file that is not automatically set up by Shopify and cannot be placed in a page (since it does not have access to Shopify's Liquid templating system), I find that it can take hours for the CDNs to start serving up the new version of said .css.liquid file.
In the future, how can I cut down on this waiting time? Currently, here's what I think is going on:
Most asset urls have some number appended to them, like so:
path/to/filename?270. It could be that this number is meant to represent last time file was served, version number, or some other flag to indicate to serve up the file. If so, then I can just create a template to grab this info myself (though I prefer not having to take an additional step.The CDN servers' cache times are high, and will not reissue a new representation of the file until the data in the cache has expired. If so, there's not much I can do about this.
Please let me know if it's one of the above situations, or if it's something else.