Page MenuHomeWickedGov Phorge
Files F1425759

errorLogger.js
No OneTemporary
Actions

Size
2 KB
Referenced Files
None
Subscribers
None

errorLogger.js
View Options

'use strict';
/**
* Fired via mw.track when an error is not handled by local code and is caught by the
* window.onerror handler.
*
* @ignore
* @event ~'global.error'
* @param {string} errorMessage Error message.
* @param {string} url URL where error was raised.
* @param {number} line Line number where error was raised.
* @param {number} [column] Line number where error was raised. Not all browsers
* support this.
* @param {Error|Mixed} [errorObject] The error object. Typically an instance of Error, but
* anything (even a primitive value) passed to a throw clause will end up here.
*/
/**
* Fired via mw.track when an error is logged with mw.errorLogger#logError.
*
* @ignore
* @event ~'error.caught'
* @param {Error} errorObject The error object
*/
/**
* Install a `window.onerror` handler that logs errors by notifying both `global.error` and
* `error.uncaught` topic subscribers that an event has occurred. Note well that the former is
* done for backwards compatibilty.
*
* @private
* @param {Object} window
*/
function installGlobalHandler( window ) {
// We will preserve the return value of the previous handler. window.onerror works the
// opposite way than normal event handlers (returning true will prevent the default
// action, returning false will let the browser handle the error normally, by e.g.
// logging to the console), so our fallback old handler needs to return false.
const oldHandler = window.onerror || function () {
return false;
};
window.onerror = function ( errorMessage, url, line, column, errorObject ) {
mw.track( 'global.error', {
errorMessage: errorMessage,
url: url,
lineNumber: line,
columnNumber: column,
stackTrace: errorObject ? errorObject.stack : '',
errorObject: errorObject
} );
if ( errorObject ) {
mw.track( 'error.uncaught', errorObject );
}
return oldHandler.apply( this, arguments );
};
}
/**
* Allows the logging of client errors for later inspections.
*
* @namespace mw.errorLogger
*/
mw.errorLogger = {
/**
* Logs an error by notifying subscribers to the given mw.track() topic
* (by default `error.caught`) that an event has occurred.
*
* @param {Error} error
* @param {string} [topic='error.caught'] Error topic. Conventionally in the form
* 'error.⧼component⧽' (where ⧼component⧽ identifies the code logging the error at a
* high level; e.g. an extension name).
*/
logError: function ( error, topic ) {
mw.track( topic || 'error.caught', error );
}
};
if ( window.QUnit ) {
mw.errorLogger.installGlobalHandler = installGlobalHandler;
} else {
installGlobalHandler( window );
}

File Metadata

Mime Type
text/plain
Expires
Sat, May 16, 11:57 (20 h, 21 m)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
95/ee/d56bbd6e7238a135793a1434020e
Default Alt Text
errorLogger.js (2 KB)

Event Timeline