Current Behavior

reported by @bjorn3 via Zulip

During page load there is a white flash. The ember.js version shows the green background until the javascript is fully ready.

It seems that DOMContentLoaded with the svelte version gets triggered long before the page is actually ready, while for the ember.js version it takes longer, but when it triggers the page is almost fully loaded already. This is probably because svelte does an asynchronous load of the javascript by inserting the main script element at runtime, while ember.js does a blocking load.

Expected Behavior

it should ideally only start rendering once the CSS has been loaded, to avoid the FOUC.

Steps To Reproduce

• clear the browser cache
• visit https://crates.io/svelte/

Environment

• Browser:
• OS:

Anything else?

this is related to #12515