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javascriptjqueryjquery-mobileopera

JQuery Mobile / Opera Mini - Uncaught exception: ReferenceError: Undefined variable: filters

I have a mobile site built with JQuery mobile (and of course JQuery). At the start of my own javascript file I have this error logging code:

"use strict";

window.onerror = function (errorMsg, url, lineNumber, column, errorObj) {
    remoteConsoleLog(errorMsg, 'window onerror ' + url);
}

function remoteConsoleLog(msgToLog, msgDesc) {
  $.ajax({
    type: 'POST',
    url: '/php/mobile_log_javascript_events.php',
    data: JSON.stringify({UA: navigator.userAgent, MSG: msgToLog, MSGDESC: msgDesc}),
    contentType: 'application/json; charset=utf-8'
  });
}

This enables me to log (to my server) javascript errors the end users get.

I am seeing this error for Opera Mini users (various versions)

Uncaught exception: ReferenceError: Undefined variable: filters

Looking at the JQuery source I see 'filters' is referenced many times, and it is not in use with my own code, so can only assume there is some issue with Opera Mini.

I have tried it out myself with these versions (basically all current as of today):

JQuery 1.11.1 JQuery Mobile 1.4.5 Opera Mini/15.0.2125

Not seeing this error with any other browsers.

Solution

  • This is a bug on the server side of Opera Mini. This should not affect your code in any way. Anyway, we are going to fix the issue soon, so you don't get unnecessary notifications.