Hosting statically generated sites on Amazon S3 has been simple for a while. Cheap and scalable, it’s an great way to deploy a site that doesn’t need server side logic. The same hasn’t been true of Azure Blob Store.
That‘s changing soon, however. Azure is adding default index and error page handling to allow Azure Blob Store to be a first class web host for statically generated sites (like this one!) and single page apps. It’s in sneak preview now and the only public mention I can find so far is from a few minutes of this talk at Build 2018.