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Render method does not return the finished HTML, rather the unhydrated HTML when used in react + vite app #3181
Description
What versions are you using? (if relevant)
@react-email/render -> 2.0.4
Describe the Bug
When the rendered template is copied to clipboard or logged to the console, HTML contains scripts and other elements that result in a broken html being copied to the clipboard. But when copied for the second time, the html returned works which implies a streaming issue happens in the browser.
Is render utility only meant for server side and not browsers, as I am running it in vite react app
What is affected (leave empty if unsure)
Render Utility
Link to the code that reproduces this issue
const rendered = await pretty(await render(<FinalTemplate content={str} />));
navigator.clipboard.writeText(rendered);
toast.message("Email Template copied");
const tailwindConfig = {
presets: [pixelBasedPreset],
theme: {
extend: {
colors: {
brand: "#007291",
},
},
},
}
type Props = {
content: string,
}
export const FinalTemplate = ({ content }: Props) => {
return <Html>
<Head />
<Tailwind config={tailwindConfig}>
<Body className="bg-white font-google">
<Container className="my-[30px] mx-auto bg-white rounded-[5px] overflow-hidden">
<Section className="bg-[#0048C2] p-8 text-center">
<Img
src=""
width="260"
className="mx-auto block"
/>
</Section>
<Section className="px-10">
<Text className="text-sm leading-[22px] text-[#3c4043]">
{content}
</Text>
</Section>
<Section
className="text-center px-8 pt-10 pb-6 bg-[#0048C2]"
>
{/* Logo */}
<Row>
<Column className="text-center pb-6">
<Img
src=""
width="200"
style={{ margin: "0 auto", display: "block" }}
/>
</Column>
</Row>
{/* Thin divider */}
<Row>
<Column className="px-16 pb-6">
<div
style={{
height: 1,
backgroundColor: "rgba(255,255,255,0.15)",
}}
/>
</Column>
</Row>
{/* Social Icons */}
<Row>
<Column className="text-center pb-5">
{/* Facebook */}
<Link href="https://facebook.com" style={{ display: "inline-block", margin: "0 10px" }}>
<Img
src="https://cdn.simpleicons.org/facebook/white"
alt="Facebook"
width="24"
height="24"
style={{ display: "inline-block" }}
/>
</Link>
{/* Instagram */}
<Link href="https://instagram.com" style={{ display: "inline-block", margin: "0 10px" }}>
<Img
src="https://cdn.simpleicons.org/instagram/white"
alt="Instagram"
width="24"
height="24"
style={{ display: "inline-block" }}
/>
</Link>
</Column>
</Row>
{/* App Store Badges */}
<Row>
<Column className="text-center pb-7">
{/* App Store */}
<Link
href="https://apps.apple.com"
style={{
display: "inline-block",
marginRight: 6,
backgroundColor: "rgba(255,255,255,0.1)",
borderRadius: 8,
padding: "8px 16px",
border: "1px solid rgba(255,255,255,0.25)",
}}
>
<Img
src="https://cdn.simpleicons.org/appstore/white"
alt="App Store"
width="20"
height="20"
style={{ display: "inline-block", verticalAlign: "middle", marginRight: 8 }}
/>
<span
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#ffffff",
fontSize: "12px",
fontWeight: 600,
verticalAlign: "middle",
letterSpacing: "0.04em",
textTransform: "uppercase",
}}
>
App Store
</span>
</Link>
{/* Google Play */}
<Link
href="https://play.google.com"
style={{
display: "inline-block",
marginLeft: 6,
backgroundColor: "rgba(255,255,255,0.1)",
borderRadius: 8,
padding: "8px 16px",
border: "1px solid rgba(255,255,255,0.25)",
}}
>
<Img
src="https://cdn.simpleicons.org/googleplay/white"
alt="Google Play"
width="20"
height="20"
style={{ display: "inline-block", verticalAlign: "middle", marginRight: 8 }}
/>
<span
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#ffffff",
fontSize: "12px",
fontWeight: 600,
verticalAlign: "middle",
letterSpacing: "0.04em",
textTransform: "uppercase",
}}
>
Google Play
</span>
</Link>
</Column>
</Row>
{/* Thin divider */}
<Row>
<Column className="px-16 pb-6">
<div
style={{
height: 1,
backgroundColor: "rgba(255,255,255,0.15)",
}}
/>
</Column>
</Row>
{/* Hours of Operation */}
<Row>
<Column className="text-center pb-1">
<Text
className="m-0 text-[14px] font-semibold"
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#ffffff",
}}
>
Hours of Operation
</Text>
</Column>
</Row>
<Row>
<Column className="text-center pb-5">
<Text
className="m-0 text-[13px]"
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#a8bde8",
}}
>
Mon – Sun: 8am – 9pm
</Text>
</Column>
</Row>
{/* Address */}
<Row>
<Column className="text-center px-6 pb-2">
<Text
className="m-0 text-[13px] leading-relaxed"
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#a8bde8",
}}
>
10880, Mailbu Point
<br />
California - 90265 United States
</Text>
</Column>
</Row>
{/* Phone */}
<Row>
<Column className="text-center pb-6">
<Link
href="tel:+1908487374837"
className="text-[13px] no-underline"
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#a8bde8",
}}
>
1908487374837
</Link>
</Column>
</Row>
{/* Thin divider */}
<Row>
<Column className="px-16 pb-5">
<div
style={{
height: 1,
backgroundColor: "rgba(255,255,255,0.1)",
}}
/>
</Column>
</Row>
{/* Copyright */}
<Row>
<Column className="text-center pb-2">
<Text
className="m-0 text-[11px]"
style={{
fontFamily: "'Barlow', 'Helvetica Neue', sans-serif",
color: "#4a6aab",
}}
>
Copyright ©
</Text>
</Column>
</Row>
</Section>
</Container>
</Body>
</Tailwind>
</Html>
};
export default FinalTemplate;
To Reproduce
To reproduce the issue
- install the folowing packages on vite + react + typescript app
"@react-email/components": "1.0.10",
"@react-email/render": "^2.0.4",
"@react-email/tailwind": "^2.0.6", - Create an email template using the templates from the docs,
- Add a prop that that passes down a string content
- Call render function on a click of a button ( see code above )
Expected Behavior
The string returned after awaiting the render utility should ideally be a proper HTML with no scripts or broken HTML
What's your node version? (if relevant)
No response
Activity
[-]Render method does not return the finished HTML, rather the un hydrated HTML when used in react + vite app[/-][+]Render method does not return the finished HTML, rather the unhydrated HTML when used in react + vite app[/+]Maliik-B commentedon Jun 25, 2026
This should be resolved as of @react-email/render 2.0.6. The repro here is on 2.0.4.
The symptom (first call returns HTML with streaming script/reveal markers, second call is clean) is the browser render (https://github.com/resend/react-email/blob/canary/packages/render/src/browser/render.tsx) reading the renderToReadableStream output before the async parts finished. On the first call something in the tree suspends (Tailwind, or the font-google fetch), so React emits the shell plus the reveal scripts that swap in the suspended content; on the second call that work is cached, nothing suspends, and you get clean HTML.
#3091 (#3091) fixed this in 2.0.6 by awaiting stream.allReady before reading the stream. The browser suite has a regression test (https://github.com/resend/react-email/blob/canary/packages/render/src/browser/render-web.spec.tsx) asserting the output has no $RC and no markers after a suspended boundary resolves.
Upgrading to >= 2.0.6 (current is 2.0.8) should clear it. Worth closing if that does it on your end.
karansethia123 commentedon Jun 26, 2026
Well I got laid off but I'll take your word for it and try it in other projects thanks