The schema switch is not working in Firefox

Describe the bug

When API Requests schema has a discriminator, it is visible as a switch, which permits to see all possible Request variants.
This works perfectly in Chrome browser, but fails in the Firefox.

To Reproduce

Steps to reproduce the behavior:

1. given OpenAPI file apidoc_test.yaml as the input;
2. redocly generates apidoc_test.html from apidoc_test.yaml without errors and without warnings;
3. open the resulting file apidoc_test.html with the Firefox browser and see the error as it outlined in the screenshot:

Expected behaviour

The request Schema should be "switchable" in Firefox browser.

OpenAPI description

The source YAML and the result HTML files can be found here:
openapi.zip

Software Versions

redocly --version
1.9.1

node --version
v14.18.3

Firefox: 123.0.1 (64-bit)

Reproduce the issue using the provided apidoc_test.yaml and generated apidoc_test.html in Firefox 123.0.1, then compare the schema switch behavior with Chrome. Trace the frontend schema-switch entry point and verify that the request schema remains switchable in Firefox without breaking the existing Chrome behavior.