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globalClassNamePolyfill removes properties #192

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globalClassNamePolyfill removes properties#192
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bugSomething isn't working

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@doits
doits
opened on Sep 26, 2025

Before submitting a new issue

  • I tested using the latest version of the library, as the bug might be already fixed.
  • I tested using a supported version of react native.
  • I checked for possible duplicate issues, with possible answers.

Bug summary

When using globalClassNamePolyfill: true, due to the way it works, properties get lost. For example Image has a resolveAssetPath function as a property which gets lost.

Without the polyfill enabled you can do this and it imports the function:

import { resolveAssetPath } from Image

With the polyfill enabled, it doesn't work anymore (the above returns undefined).

I think the solution might be to do a Object.assign:

export function Image(props: StyledProps<ImageProps, typeof mapping>) {
  return useCssElement(RNImage, props, mapping);
}

Object.assign(Image, RNImage)

Library version

3.0.0

Environment info

Not relevant

Steps to reproduce

See above

Reproducible example repository

Not provided

Activity

  1. doits
    added
    bugSomething isn't working
    on Sep 26, 2025

  2. doits commented on Sep 26, 2025

    @doits
    doits
    on Sep 26, 2025
    Author

    Some more info/context:

    • Polyfill disabled:

      import { Image } from "react-native";

console.log(Object.keys(Image));
// => ["displayName", "getSize", "getSizeWithHeaders", "prefetch", "prefetchWithMetadata", "queryCache", "resolveAssetSource"]

    • Polyfill enabled:

      import { Image } from "react-native";

console.log(Object.keys(Image));
// => []

    I found it out because it breaks https://github.com/react-native-webview/react-native-webview, which depends on this.

  3. marklawlor commented on Oct 1, 2025

    @marklawlor
    marklawlor
    on Oct 1, 2025
    Contributor

    Fixed in 7f3eb1f

  4. doits commented on Oct 1, 2025

    @doits
    doits
    on Oct 1, 2025
    Author

    Thanks, looks good! Will test out when a new version is released.

  5. doits
    closed this as completedon Oct 1, 2025
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