fix: remove ":$" from virtual module ids to allow dev server to work with proxies

[janabimustafa]

Summary:

This PR addresses an issue where Nginx, and potentially other reverse proxies, do not process URLs containing the sequence :$. Specifically, Nginx returns a "400 Bad Request" error when it encounters such URLs. This conflict arises when using the Vite development server with SvelteKit, where certain virtual modules (e.g., $env/dynamic/public and $env/static/public) are externally represented with an ID that includes :$.

Details:

In the Vite dev server, some SvelteKit virtual modules are resolved to IDs such as \0virtual:$env/dynamic/public. The presence of :$ in these IDs causes compatibility issues with Nginx, which fails to handle these URLs correctly.

Solution:

This PR modifies the naming convention for virtual modules in the Vite development environment. The proposed change is to avoid starting virtual module names with $, thereby preventing the inclusion of :$ in the module IDs. This adjustment ensures that the Vite dev server can operate behind Nginx or similar reverse proxies without encountering HTTP 400 errors.

Impact:

Adopting this naming convention will allow developers to run the Vite development server behind Nginx and other reverse proxies seamlessly, improving development workflow and compatibility.

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Latest commit: 3261c7d

The changes in this PR will be included in the next version bump.

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@sveltejs/kit	Patch

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