Custom values via embedded chat

[DarisCappelletti]

Self Checks

• I have searched for existing issues search for existing issues, including closed ones.
• I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
• [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:）
• Please do not modify this template :) and fill in all the required fields.

1. Is this request related to a challenge you're experiencing? Tell me about your story.

Dify version

v0.15.1

Cloud or Self Hosted

Self Hosted (Source), Self Hosted (Docker)

Steps to reproduce

1. Set up the embedding through a script on an HTML page.
2. Configure the desired values in the script.
3. The documentation does not mention any possibility of adding custom values to be passed to the chatflow.

✔️ Expected Behavior

Through the chat embedding script, it should be possible to add variables that can be passed to the chatflow.
These variables could be used within the flow, for example, to make API calls with specific parameters or to obtain information about the user, such as the browser being used.

❌ Actual Behavior

Currently, it is not possible to pass any type of variable. You can only populate the input values that the user needs to set initially.

2. Additional context or comments

No response

3. Can you help us with this feature?

• I am interested in contributing to this feature.