Edge runtime error: Buffer is not defined

[RoyalIcing]

What version of astro are you using?

1.0.5

Are you using an SSR adapter? If so, which one?

Deno

What package manager are you using?

npm

What operating system are you using?

Mac

Describe the Bug

When deploying to Deno Deploy or running locally with Deno, I receive this error:

Server running on port 8085
01:43:51 pm [ssr] ReferenceError: Buffer is not defined
    at renderPage (file:///Users/pgwsmith/Royal%20Icing/regenerated-astro/dist/server/entry.mjs:5767:28)
    at async render (file:///Users/pgwsmith/Royal%20Icing/regenerated-astro/dist/server/entry.mjs:6560:10)
    at async App.renderPage_fn (file:///Users/pgwsmith/Royal%20Icing/regenerated-astro/dist/server/entry.mjs:7499:22)
    at async App.render (file:///Users/pgwsmith/Royal%20Icing/regenerated-astro/dist/server/entry.mjs:7451:22)
    at async Server.handler (file:///Users/pgwsmith/Royal%20Icing/regenerated-astro/dist/server/entry.mjs:7580:14)
    at async Server.#respond (https://deno.land/[email protected]/http/server.ts:298:18)

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-tdn4cu?file=package.json

Participation

• I am willing to submit a pull request for this issue.

[QuiiBz]

I've encountered the same error when targeting any edge runtime (discussion on the Discord). Looking at the docs of cloudflare workers and deno deploy, none of them provides an API for Buffer which makes sense since it's a node-specific API.

I initially found this error while testing on my edge runtime (https://github.com/lagonapp/lagon), so maybe we should rename the issue and PR to be about "any edge runtime" instead of specifically deno?

[natemoo-re]

Thanks for opening an issue! I will take a look at the PR you submitted, really appreciate it!

[FredKSchott]

Note for PR (or followup PR): Can we make sure that this code path is hit inside of our Deno test?