How can JS/CSS cache busting be implemented for SharePoint Online in a master page? Other methods detailed on StackExchange do not work as SPO developers do not have access to the _layouts folder to store their custom JS/CSS files. I currently store my custom JS/CSS files in a read-only document library that everyone has access to. Some have posted about using a CDN, but there must be something easier.
Of course this can be manually accomplished by appending a "?v=[randomstring]" to your script filename but that isn't a best practice.
Ideally, I would like to utilize the OOTB cache management that SPO uses for its scripts where it adds a version number parameter.