# S3 buckets containing periods not allowed **URL:** https://meta.discourse.org/t/s3-buckets-containing-periods-not-allowed/35645 **Category:** Feature **Created:** [November 16, 2015, 1:23pm UTC](https://meta.discourse.org/t/s3-buckets-containing-periods-not-allowed/35645 "2015-11-16T13:23:32Z") **Posts on this page:** 1 **Showing post:** 8
### Author: ![gingerman](https://avatars.discourse-cdn.com/v4/letter/g/47e85d/32.png) [@gingerman](https://meta.discourse.org/u/gingerman) #### Post date: [July 2, 2016, 1:39am UTC](https://meta.discourse.org/t/s3-buckets-containing-periods-not-allowed/35645/8 "2016-07-02T01:39:43Z")
@fearlessfrog Thanks…I ended up doing exactly the same. I don’t know how I missed your thread earlier. Just to highlight - this approach has a limitation in terms of cache invalidation. we have to do separately invalidations in cloudfront and cloudflare (after rebaking posts). It would be great to automate them with a script at the very least. I hit up on the same blocks eventually in terms of optimised image urls and was planning to start a thread today…Nice to know that you have already helped the team towards a fix in the below given thread. Kudos for that. > [@Want to understand s3\_cdn\_url files setting](https://meta.discourse.org/t/want-to-understand-s3-cdn-url-files-setting/45799/7): > > Here’s the fix rocket --- _[View the full topic](https://meta.discourse.org/t/s3-buckets-containing-periods-not-allowed/35645)._