Fully On-Chain SSR dApp Demo with IC and Fleek

[wiyota]

While it’s technically possible to insert metatags directly in the http response, there are a couple of known problems with running SSR on IC.

Is ssr supported in apps deployed on ic?

You are going to run into a couple of issues here. Certifying your responses - Gateways try to make sure your responses are certified by the canister. I know this has changed a bit, but I’m pretty sure you’ll still get non-certification errors if you try to serve a web resource not from the canister_id.raw.ic0.app endpoint. Origyn did a custom proxy at one point to get around this, but when you do that you open up users to a man-in-the-middle attack. Because canisters have to sign a certifi…

Even if these challenges were resolved, IC’s small number of nodes and their geographical randomness make it less than ideal as a CDN for frontend applications looking to leverage SSR/SSG/ISR to enhance UX.

Controlling external services with SNS would require a distinctive solution, but it would be the more practical approach compared to build SSR on top of the current IC.