# Hysteria OBFS fields are not sent to some clients (Streisand/Shadowrocket Tested)

**URL:** https://f.docs.rw/t/topic/344
**Category:** Баг-репорты
**Created:** 2026-07-02T16:15:11Z
**Posts:** 7
**Showing post:** 2 of 7

## Post 2 by @remnawave — 2026-07-02T16:19:18Z

> [@inoutDeev](#):
>
> but this behaviour is not persistent in other clients mentioned in the title.

This is a client application issue, not a panel issue. As I answered [here](https://f.docs.rw/t/topic/258/9), the Xray documentation doesn’t provide precise specifications for the Hysteria2 base64 format. We either strictly adhere to the Xray format, or strictly adhere to the Hysteria2 format (from the Hysteria2 documentation). In that case, we can forget about finalMask.

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