# F.A.Q

### In this section

* [Adding a client certificate for HTTPS](https://help.qlik.com/talend/en-US/api-tester-user-guide/Cloud/adding-client-certificate-for-https)
* [Automatic Google Chrome 80 headers](https://help.qlik.com/talend/en-US/api-tester-user-guide/Cloud/automatic-chrome-80-headers)
* [Talend API Tester - Free Edition limitations](https://help.qlik.com/talend/en-US/api-tester-user-guide/Cloud/free-edition-limitations)
* [Complex regular expressions in assertions](https://help.qlik.com/talend/en-US/api-tester-user-guide/Cloud/complex-regular-expressions-in-assertions)
* [Required permissions for the extension](https://help.qlik.com/talend/en-US/api-tester-user-guide/Cloud/required-permissions-for-extension)
* [Encoding issues with plus signs](https://help.qlik.com/talend/en-US/api-tester-user-guide/Cloud/encoding-issues-plus-signs)