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docs: add note about dev-server startup and styles (#58751)

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A note has been added to the application builder documentation regarding
the Vite-based development server and style processing that could
potentially result in initial FOUC due to server processing overhead on startup.

PR Close #58751
This commit is contained in:
Charles Lyding
2024-11-19 14:27:23 -05:00
committed by Andrew Kushnir
parent f8e5119435
commit a3521df6aa
1 changed files with 4 additions and 0 deletions
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adev/src/content/tools/cli/build-system-migration.md
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@@ -179,6 +179,10 @@ ng serve
You can continue to use the [command line options](/cli/serve) you have used in the past with the development server.
HELPFUL: With the development server, you may see a small Flash of Unstyled Content (FOUC) on startup as the server initializes.
The development server attempts to defer processing of stylesheets until first use to improve rebuild times.
This will not occur in builds outside the development server.
### Hot module replacement
Hot Module Replacement (HMR) is a technique used by development servers to avoid reloading the entire page when only part of an application is changed.