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fix: intermitent error during build #2728

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fix: intermitent error during build #2728

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66cad1f
usage of useSuspendPromise only for React <18
gabrielmfern Dec 12, 2025
9a639c8
update snaps
gabrielmfern Dec 12, 2025
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6 changes: 3 additions & 3 deletions packages/tailwind/src/__snapshots__/tailwind.spec.tsx.snap
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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html

exports[`Tailwind component > <Button className="px-3 py-2 mt-8 text-sm text-gray-200 bg-blue-600 rounded-md"> 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$--><a style="line-height:1.4285714285714286;text-decoration:none;display:inline-block;max-width:100%;mso-padding-alt:0px;margin-top:2rem;border-radius:0.375rem;background-color:rgb(21,93,252);padding-right:12px;padding-left:12px;padding-bottom:8px;padding-top:8px;color:rgb(229,231,235);font-size:0.875rem" target="_blank"><span><!--[if mso]><i style="mso-font-width:300%;mso-text-raise:12" hidden>&#8202;&#8202;</i><![endif]--></span><span style="max-width:100%;display:inline-block;line-height:120%;mso-padding-alt:0px;mso-text-raise:6px">Testing button</span><span><!--[if mso]><i style="mso-font-width:300%" hidden>&#8202;&#8202;&#8203;</i><![endif]--></span></a>Testing<!--/$-->"`;
exports[`Tailwind component > <Button className="px-3 py-2 mt-8 text-sm text-gray-200 bg-blue-600 rounded-md"> 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$--><a style="line-height:1.4285714285714286;text-decoration:none;display:inline-block;max-width:100%;mso-padding-alt:0px;margin-top:2rem;border-radius:0.375rem;background-color:rgb(21,93,252);padding-right:12px;padding-left:12px;padding-bottom:8px;padding-top:8px;color:rgb(229,231,235);font-size:0.875rem" target="_blank"><span><!--[if mso]><i style="mso-font-width:300%;mso-text-raise:12" hidden>&#8202;&#8202;</i><![endif]--></span><span style="max-width:100%;display:inline-block;line-height:120%;mso-padding-alt:0px;mso-text-raise:6px">Testing button</span><span><!--[if mso]><i style="mso-font-width:300%" hidden>&#8202;&#8202;&#8203;</i><![endif]--></span></a>Testing<!-- --><!--/$-->"`;

exports[`Tailwind component > allows for complex children manipulation 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$--><table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="text-align:center;font-size:0"><tbody><tr><td style="padding:0px 0px 0px 0px"><table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="max-width:300px;display:inline-block;vertical-align:top;font-size:16px;box-sizing:border-box"><tbody><tr><td>This is the first column</td></tr></tbody></table><table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="max-width:300px;display:inline-block;vertical-align:top;font-size:16px;box-sizing:border-box"><tbody><tr><td>This is the second column</td></tr></tbody></table></td></tr></tbody></table><!--/$-->"`;

exports[`Tailwind component > does not override inline styles with Tailwind styles 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$--><div style="background-color:red;font-size:12px"></div><!--/$-->"`;

exports[`Tailwind component > doesn't generate styles from text 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$-->container bg-red-500 bg-blue-300<!--/$-->"`;
exports[`Tailwind component > doesn't generate styles from text 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$-->container bg-red-500 bg-blue-300<!-- --><!--/$-->"`;

exports[`Tailwind component > overrides component styles with Tailwind styles 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$--><hr style="width:3rem;border:none;border-top:1px solid #eaeaea"/><!--/$-->"`;

Expand Down Expand Up @@ -240,7 +240,7 @@ exports[`Tailwind component > with non-inlinable styles > works with relatively

exports[`Tailwind component > works properly with 'no-underline' 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html dir="ltr" lang="en"><head></head><!--$--><body><p style="font-size:14px;color:rgb(0,0,0);line-height:24px">or copy and paste this URL into your browser:<!-- --> <a class="other" href="https://react.email" style="color:rgb(21,93,252);text-decoration-line:none" target="_blank">https://react.email</a></p><p style="font-size:14px;color:rgb(0,0,0);line-height:24px">or copy and paste this URL into your browser:<!-- --> <a href="https://react.email" style="color:rgb(21,93,252);text-decoration-line:none" target="_blank">https://react.email</a></p><!--/$--></body></html>"`;

exports[`Tailwind component > works with Heading component 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$-->Hello<h1>My testing heading</h1>friends<!--/$-->"`;
exports[`Tailwind component > works with Heading component 1`] = `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><!--$-->Hello<h1>My testing heading</h1>friends<!-- --><!--/$-->"`;

exports[`Tailwind component > works with blocklist 1`] = `
"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Expand Down
42 changes: 34 additions & 8 deletions packages/tailwind/src/tailwind.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,10 @@ import { getCustomProperties } from './utils/css/get-custom-properties';
import { sanitizeNonInlinableRules } from './utils/css/sanitize-non-inlinable-rules';
import { mapReactTree } from './utils/react/map-react-tree';
import { cloneElementWithInlinedStyles } from './utils/tailwindcss/clone-element-with-inlined-styles';
import { setupTailwind } from './utils/tailwindcss/setup-tailwind';
import {
setupTailwind,
type TailwindSetup,
} from './utils/tailwindcss/setup-tailwind';

export type TailwindConfig = Omit<Config, 'content'>;

Expand Down Expand Up @@ -82,13 +85,13 @@ export const pixelBasedPreset: TailwindConfig = {
},
};

export function Tailwind({ children, config }: TailwindProps) {
const tailwindSetup = useSuspensedPromise(
() => setupTailwind(config ?? {}),
JSON.stringify(config, (_key, value) =>
typeof value === 'function' ? value.toString() : value,
),
);
function Inner({
children,
tailwindSetup,
}: {
children: React.ReactNode;
tailwindSetup: TailwindSetup;
}) {
let classesUsed: string[] = [];

let mappedChildren: React.ReactNode = mapReactTree(children, (node) => {
Expand Down Expand Up @@ -168,3 +171,26 @@ please file a bug https://github.com/resend/react-email/issues/new?assignees=&la

return mappedChildren;
}

let Component: React.FunctionComponent<TailwindProps>;

if (React.version.startsWith('19')) {
Component = async function Tailwind({ children, config }: TailwindProps) {
const tailwindSetup = await setupTailwind(config ?? {});

return <Inner children={children} tailwindSetup={tailwindSetup} />;
};
} else {
Component = function Tailwind({ children, config }: TailwindProps) {
const tailwindSetup = useSuspensedPromise(
() => setupTailwind(config ?? {}),
JSON.stringify(config, (_key, value) =>
typeof value === 'function' ? value.toString() : value,
),
);

return <Inner children={children} tailwindSetup={tailwindSetup} />;
};
}

export { Component as Tailwind };
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