Reducing Noise

Honeybadger can ignore frequent/unwanted errors in order to reduce noise, limit bandwidth usage, or both.

Note: If you're uploading a source map (recommended!) be sure to check out Improving error grouping and linking to source code.

Ignoring errors

To ignore an error, return false from any Honeybadger.beforeNotify handler:

javascript

Honeybadger.beforeNotify(function(notice) {
  if (/third-party-domain/.test(notice.stack)) { return false; }
});

The following notice properties are available in notice objects:

notice.stack - The stack trace (read only)
notice.backtrace - The parsed backtrace object
notice.name - The exception class name
notice.message - The error message
notice.url - The current url
notice.projectRoot - The root url
notice.environment - Name of the environment. example: "production"
notice.component - Similar to a rails controller name. example: "users"
notice.action - Similar to a rails action name. example: "create"
notice.fingerprint - A unique fingerprint, used to customize grouping of errors in Honeybadger
notice.context - The context object
notice.tags - A string comma-separated list of tags
notice.params - An object of request parameters
notice.session - An object of request session key/values
notice.headers - An object of request headers
notice.cookies - An object of cookie key/values. May also be sent as a string in the document.cookie "foo=bar;bar=baz" format.

The following additional notice properties are available in afterNotify handlers:

notice.id - The UUID of the error in Honeybadger

Transient UnhandledPromiseRejectionWarning errors

Sometimes you might see UnhandledPromiseRejectionWarning errors that lack useful debugging information. This can happen for a variety of reasons that don't actually point to a problem in your application (perhaps from a crawler request that doesn't have a modern javascript implementation). In these cases adding a targeted filter can help reduce noise.

javascript

Honeybadger.beforeNotify(function(notice) {
  if (/UnhandledPromiseRejectionWarning: Unspecified reason/.test(notice.message)) { return false; }
});

Limit bandwidth (browser only)

If your application is reporting too many errors (which could interfere with bandwidth constraints, or cause you to use up your monthly error volume too quickly), use the maxErrors configuration option:

javascript

  

Honeybadger.configure({
  // ...
  maxErrors: 20
});

On each page load, errors will be sent to Honeybadger until the maxErrors threshold has been reached. In the above example, 20 errors will be reported per page load.

Use Honeybadger.resetMaxErrors() to reset the counter between page loads (useful for single page apps which don't typically reload the page often).