Depending on the WebGL build inside Unity, certain keyboard inputs might not work with ProtoPie. This is because Unity WebGL's default settings are set to capture all keyboard inputs, which may interfere with ProtoPie's functionality. However, installing the Unity Plugin will solve this issue by disabling the Unity WebGL property.

Alternatively, you can modify the code in your Unity project to prevent Unity WebGL from capturing all keyboard inputs.

You can use either a full URL or iframe code for embedding. The web embed feature supports formats such as Maps, Spline, Rive, Bezi, etc. Ensure the URL is valid and you have the necessary permission to access it.

Here are some additional details to consider:

1. Full URL embedding: If you opt for embedding with a full URL, ensure that the server providing the URL has appropriate CORS (Cross-Origin Resource Sharing) policy settings. This detail is crucial, especially if you are embedding a coded prototype running locally or hosted online.

2. Iframe code embedding: When embedding iframe code from services like Spline, Rive, Mapbox, etc., make sure to use the iframe code generated directly from the respective services. You can insert the entire iframe code or extract only the src section. For example: