Duplicate URL in REST API Browser

Summary

Some REST URLs are duplicate in REST API BROWSER

Steps to Reproduce

1. Install JIRA 8.0.0

2. Install REST API Browser 3.2.2

3. Browse the "field & dashboard" REST API;

Expected Results

• To have the URL set as: http://jira_instance/rest/api/2/field

Current Results

• The URL is set as: http://jira_instance/rest/api/2/api/2/field