Logging

Fuse writes detailed log messages through its lifecycle, which can assist with troubleshooting issues.

You can view log messages using Browser Developer Tools.

See the log reference for explanations of common Fuse WARN and ERROR messages.

Log Levels

Fuse has 4 log levels:

LEVEL	Description
ERROR	Fuse encountered a serious error which needs to be investigated
WARN	Fuse encountered an unexpected situation which may indicate a problem
INFO	Business-as-usual notifications, useful when diagnosing an issue with a website
DEBUG	Low level diagnostic messages, generally only useful when troubleshooting Fuse itself

Checking for errors and warnings

By default, Fuse writes WARN and ERROR log messages to the console.

These are highlighted yellow and red respectively.

Enabling INFO logging

Append the following query-parameter to the URL: fuse_log_level=info

For example: https://mysite.com/mypage.html?fuse_log_level=info

If you already have query parameters in the URL, don’t forget to separate with an &. For example: https://mysite.com/mypage.html?page=3&fuse_log_level=info