# Web SDK users cannot chat with firefox v88.0.1 (64-Bit) with http

**URL:** <https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487>\
**Category:** Web\
**Created:** [May 18, 2021, 10:59am UTC](https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487 "2021-05-18T10:59:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mariopulker](https://avatars.discourse-cdn.com/v4/letter/m/f04885/32.png) [@mariopulker](https://devforum.zoom.us/u/mariopulker)\
**Post date:** [May 18, 2021, 10:59am UTC](https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487/1 "2021-05-18T10:59:06Z")

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**Description**  
I have implemented a web sdk app.  
When I join a meeting with firefox and try to chat, I could write a message, but the message is not sent.  
This error only happens only in my local dev environment where only http is used.

**Error**  
The following JS error is displayed:  
Uncaught TypeError: i is undefined

**Which Web Client SDK version?**  
“@zoomus/websdk”: “^1.9.5”,

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Join a meeting with the webclient sdk
2. Click on chat
3. type in a chat message
4. Press enter
5. See error

**Screenshots**

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/7/9/796a9fa6e6e5242547a66df03d188f7f094a5936.png)

**Device (please complete the following information):**

- Device: PC
- OS: Windows 10
- Browser: Firefox
- Browser Version: 88.0.1 (64-Bit)

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**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [May 19, 2021, 7:08pm UTC](https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487/2 "2021-05-19T19:08:40Z")

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Hey @mariopulker,

Thank you for reaching out to the Zoom Developer Forum. I just have a couple of questions to get started:

1. Did you see this issue with 1.9.1?
2. Does this happen when using the [Sample Web App](https://github.com/zoom/sample-app-web)?

Further, this issue only happens when using HTTP instead of HTTPS, correct? If so, that seems to be expected as our [Web SDK](https://marketplace.zoom.us/docs/sdk/native-sdks/web#zoom-web-sdk) requires an SSL certificate to work as expected.

Thanks,  
Max

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<div class="post-metadata">

**Author:** ![mariopulker](https://avatars.discourse-cdn.com/v4/letter/m/f04885/32.png) [@mariopulker](https://devforum.zoom.us/u/mariopulker)\
**Post date:** [May 28, 2021, 6:37am UTC](https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487/3 "2021-05-28T06:37:09Z")

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Hi Max.  
Thank you for your answer.  
I did not investigate further in that issue, because it is only happening when using http. With https it is working.  
So you can close this ticket.

Thank you!

Mario

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<div class="post-metadata">

**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [June 2, 2021, 12:59am UTC](https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487/4 "2021-06-02T00:59:52Z")

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Great, I’m glad you got it working. Thanks for keeping us in the loop!

Max

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<div class="post-metadata">

**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [June 2, 2021, 12:59am UTC](https://devforum.zoom.us/t/web-sdk-users-cannot-chat-with-firefox-v88-0-1-64-bit-with-http/50487/5 "2021-06-02T00:59:55Z")

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Closed on June 2, 2021, 12:59am UTC