[BUG] Global Request Headers are incorrect: Expected ',' or '}' after property value in JSON at position 73 (line 4 column 3)

[danielhr2001]

Describe the bug
After installing this package, I ran php artisan serve and opened 127.0.0.1:8000/request-docs without any error. (There was no error at 127.0.0.1:8000/request-docs/api too, and it was ok.)
But when I use send option to test my route, it gives me an error for every route's Global Request Headers are incorrect: Expected ',' or '}' after property value in JSON at position 73 (line 4 column 3)'.

So I checked 127.0.0.1/request-docs/config too, and there was this config:
{ "title": "LRD - Laravel Request Docs", "default_headers": { "Content-Type": "application/json", "Accept": "application/json" } }

To Reproduce
Steps to reproduce the behavior:

1. composer require rakutentech/laravel-request-docs
2. php artisan serve
3. Open http://127.0.0.1:8000/request-docs without any problem
4. Test every route by send option and get the error
5. Global Request Headers are incorrect: Expected ',' or '}' after property value in JSON at position 73 (line 4 column 3)

Screenshots

Desktop (please complete the following information):

• OS: [Windows 11]
• Browser [Chrome Version 137.0.7151.69 (Official Build) (64-bit)]

Versions (please complete the following information):

• Laravel Version: ^10
• PHP Version: ^8.2
• Laravel Request Docs Version: ^2

[kevincobain2000]

Hmmm. Will see.