# Unable to enable SharedArrayBuffer

**URL:** <https://forum.webostv.developer.lge.com/t/unable-to-enable-sharedarraybuffer/9111>\
**Category:** Web App Development\
**Created:** [August 19, 2024, 3:48pm UTC](https://forum.webostv.developer.lge.com/t/unable-to-enable-sharedarraybuffer/9111 "2024-08-19T15:48:58Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![user2567](https://avatars.discourse-cdn.com/v4/letter/u/e9bcb4/32.png) [@user2567](https://forum.webostv.developer.lge.com/u/user2567)\
**Post date:** [August 19, 2024, 3:48pm UTC](https://forum.webostv.developer.lge.com/t/unable-to-enable-sharedarraybuffer/9111/1 "2024-08-19T15:48:58Z")

</div>

Hi,

I’m trying integrate a JS module that uses a SharedArrayBuffer. However, SharedArrayBuffer isn’t defined, because `crossOriginIsolated == false`.

I don’t have a deep knowledge of this part, I have just noticed that origin == “file://” which is obviously different of a standard web app. I’m not sure if this is related.

Is there any way to make SharedArrayBuffer API available in a webOS app ?

---

<div class="post-metadata">

**Author:** ![narae0.kim](https://avatars.discourse-cdn.com/v4/letter/n/87869e/32.png) [@narae0.kim](https://forum.webostv.developer.lge.com/u/narae0.kim)\
**Post date:** [August 20, 2024, 12:47am UTC](https://forum.webostv.developer.lge.com/t/unable-to-enable-sharedarraybuffer/9111/2 "2024-08-20T00:47:47Z")

</div>

To use the `<script type="module">` , you must serve the html file through a server due to [JavaScript module security requirements](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules#other_differences_between_modules_and_standard_scripts). Please try again with a [hosted web app](https://webostv.developer.lge.com/develop/getting-started/web-app-types#hosted-web-app). Thank you.

---

<div class="post-metadata">

**Author:** ![user2567](https://avatars.discourse-cdn.com/v4/letter/u/e9bcb4/32.png) [@user2567](https://forum.webostv.developer.lge.com/u/user2567)\
**Post date:** [August 20, 2024, 3:20pm UTC](https://forum.webostv.developer.lge.com/t/unable-to-enable-sharedarraybuffer/9111/3 "2024-08-20T15:20:06Z")

</div>

Thanks for your quick answer, it works !