Why visitors see "404 Not Found" on some assets after a deploy of a Private Spaces app?

Issue

Visitors to my Private Spaces app sometimes have a problem in viewing the page and see "404 Not Found" errors on some of assets. It seems to happen when the app is being deployed.

Resolution

Visitors to the app sees "404 Not Found" errors when it first fetches a response from a newly restarted web dyno for the Private Spaces going through rolling deploy and a request to an asset of the new version of the app is routed to a web dyno that is yet to be restarted.

While Heroku doesn't have a good solution for this problem, a customer solved the problem with placing a CDN in front of the app: https://buildingvts.com/serving-assets-while-rolling-your-deploys-c656ce6a2123

Ask on Stack Overflow

Engage with a community of passionate experts to get the answers you need

Ask on Stack Overflow

Heroku Support

Create a support ticket and our support experts will get back to you

Contact Heroku Support
Terms of Service Privacy Cookies © 2018 Salesforce.com