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Added information about Pages flags (#5188)

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Isaac McFadyen 2022-10-25 10:27:39 -04:00 committed by GitHub
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packages/integrations/cloudflare/README.md
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@ -70,11 +70,13 @@ It's then possible to update the preview script in your `package.json` to `"prev
## Streams ## Streams
Some integrations such as [React](https://github.com/withastro/astro/tree/main/packages/integrations/react) rely on web streams. Currently Cloudflare Pages functions are in beta and don't support the `streams_enable_constructors` feature flag. Some integrations such as [React](https://github.com/withastro/astro/tree/main/packages/integrations/react) rely on web streams. Currently Cloudflare Pages Functions require enabling a flag to support Streams.
In order to work around this: To do this:
- install the `"web-streams-polyfill"` package - go to the Cloudflare Pages project
- add `import "web-streams-polyfill/es2018";` to the top of the front matter of every page which requires streams, such as server rendering a React component. - click on Settings in the top bar, then Functions in the sidebar
- scroll down to Compatibility Flags, click Configure Production Compatibility Flags, and add `streams_enable_constructors`
- do this for both the Production Compatibility Flags and Preview Compatibility Flags
## Environment Variables ## Environment Variables