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## 24.2.6 Using URL Parameters to Control Debug Mode

Learn about using URL parameters to control Debug mode.

- Using Friendly URL Syntax to Access Debug Mode
  Use Friendly URL syntax to access debug mode.
- Using f?p Syntax to Access Debug Mode
  Use `f?p` syntax to access debug mode.

Parent topic: Utilizing Debug Mode

### 24.2.6.1 Using Friendly URL Syntax to Access Debug Mode

Use Friendly URL syntax to access debug mode.

Use Friendly URL syntax to run an application in debug mode, call the page and set the debug query parameter to `YES` or `LEVELn`, where `n` is either 1 (least detailed), 2, 4, 5, 6, 8, and 9 (most detailed). Setting the parameter to `YES` is equivalent to using `LEVEL4`. For example:

    https://<HOSTNAME>:<PORT>/ords/r/workspace_name/application_name/page_name?session=&APP_SESSION.&debug=YES

    https://<HOSTNAME>:<PORT>/ords/r/workspace_name/application_name/page_name?session=&APP_SESSION.&debug=LEVEL9

Note:

Even when debugging is turned off, error messages are logged.

Related Topics

- Understanding Friendly URL Syntax
- Available Debug Levels

Parent topic: Using URL Parameters to Control Debug Mode

### 24.2.6.2 Using f?p Syntax to Access Debug Mode

Use `f?p` syntax to access debug mode.

Use `f?p` syntax to run an application in debug mode, call the page and set the debug query parameter to `YES` or `LEVELn`, where `n` is either 1 (least detailed), 2, 4, 5, 6, 8, and 9 (most detailed). Setting the parameter to `YES` is equivalent to using `LEVEL4`. For example:

    f?p=100:1:&APP_SESSION.::YES

Note:

Even when debugging is turned off, error messages are logged.

Related Topics

- Understanding f?p URL Syntax
- Available Debug Levels

Parent topic: Using URL Parameters to Control Debug Mode