# Issue integrating fireblocks-sdk in a webapp

**URL:** <https://community.fireblocks.com/t/issue-integrating-fireblocks-sdk-in-a-webapp/651>\
**Category:** Developer Discussion\
**Created:** [January 31, 2024, 12:49pm UTC](https://community.fireblocks.com/t/issue-integrating-fireblocks-sdk-in-a-webapp/651 "2024-01-31T12:49:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![albertoIoBuilders](https://avatars.discourse-cdn.com/v4/letter/a/d2c977/32.png) [@albertoIoBuilders](https://community.fireblocks.com/u/albertoIoBuilders)\
**Post date:** [January 31, 2024, 12:49pm UTC](https://community.fireblocks.com/t/issue-integrating-fireblocks-sdk-in-a-webapp/651/1 "2024-01-31T12:49:47Z")

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We are in the process of integrating the Fireblocks SDK for javascript into a browser application and have encountered an issue related to one of its dependencies, namely “os”. When attempting to create and sign a transaction, the “api-client.js” file within the “fireblocks-sdk” imports the “os” library using the following code: const os\_1 = \_\_importDefault(require(“os”));. However, it appears that this library is not compatible with the browser for some reason.

Have you encountered a similar issue before? Could you provide assistance or guidance on how to address this matter?

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**Author:** ![alec](https://sea1.discourse-cdn.com/flex015/user_avatar/community.fireblocks.com/alec/32/112_2.png) [@alec](https://community.fireblocks.com/u/alec)\
**Post date:** [February 5, 2024, 9:32pm UTC](https://community.fireblocks.com/t/issue-integrating-fireblocks-sdk-in-a-webapp/651/2 "2024-02-05T21:32:03Z")

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Hi @albertoIoBuilders

Alec from Fireblocks here. This library is necessary for the SDK to operate. Could you please share which browser you are using, and which version?