Applicationinsights-js: What does this error mean ? ( FailedMonitorAjaxRSC )

[29er]

"AI (Internal): FailedMonitorAjaxRSC message:"Failed to monitor XMLHttpRequest 'readystatechange' event handler, monitoring data for this ajax call may be incorrect." props:"{ajaxDiagnosticsMessage:(url: '/bomapi/knowledgebases/parts/meta'),exception:[object Object]{\messageId\:26,\message\:\AI (Internal): SessionRenewalDateIsZero message:\\AI session renewal date is 0, session will be reset.\\}}""

we've been using App Insight for a few weeks now, and started seeing this error today ??

Thanks

[debugthings]

What browser does this happen in and what is the host name in the URL?

[juzkuz-zz]

I have this same issue - I'm trying to run app insights from a cordova application (ionic) and am not able to get ajax to load. The same error occurs for me when I enabled debugging and verbose logging

[cdwaddell]

I am also having this issue in an Angular application.

[tlaak]

I'm also having the same issue in an Angular 4 application. The error message and the messageId varies a bit, depending which AppInsights function you're calling, but in the end there's always this AI session renewal date is 0, session will be reset. line.

[tlaak]

I deleted cookies and all localStorage and sessionStorage settings and I can't see the errors anymore. I have tried changing sessionRenewalMs and sessionExpirationMs settings to something lower, but I haven't been able to reproduce the issue yet.

[tlaak]

@KamilSzostak Any idea what would be causing this problem? I'm still getting errors like this, now with Angular 5.24, applicationinsights-js 1.0.15. and a totally different app than last time.

ERROR e {messageId: 11, message: "AI (Internal): ExceptionWhileLoggingError message:…\}}\\\\},errorString:Error, [object ErrorEvent]}""} and Uncaught e {messageId: 37, message: "AI (Internal): TrackPVFailedCalc message:"trackPag… renewal date is 0, session will be reset.\\\\}}""}

Deleting localStorage, sessionStorage and cookies will only be a temporary fix, the problem will reappear after 1-2 days or even longer.

This is also reported in StackOverflow

[gmaughan]

If I turn off "cookie use" I no longer get the errors. I don't know what the implications are of this yet regarding session tracking.

AppInsights.downloadAndSetup({ instrumentationKey: key, isCookieUseDisabled: true });

[cyrixmorten]

I am also seeing this error in an angular application and will disable cookie usage as suggested by @gmaughan

Can any of the developers of this library advice on the implications it may have to disable cookies?

Or even better, identify what is causing and fix it.

I see that ai_session has a value of |0|0

[markwolff]

@cyrixmorten Implications of disabling cookies
You can try updating to the latest version (1.0.20), although I don't think this issue was ever addressed in an update.

The session renewal date is 0 message is just a warning, letting you know that your session cookie is going to be renewed. It doesn't actually mean something is directly wrong. However, enableDebugExceptions: true might be making it throw something, causing the track calls to break; do you have this setting enabled in any of your test cases?

[cyrixmorten]

@markwolff Thank you for your reply

I had both enableDebug and verboseLogging options enabled. Do not see a enableDebugExceptions option and so have not set it anywhere.

The fact that it is posted as an error made me think that it was in a bad state. Additionally did not notice the session being renewed, even after navigating the page a bit to trigger some more events being fired at app insights. Kept seeing |0|0 in the ai_session cookie.

However, as the implications of disabling cookies seems rather high, I will revert back to having cookies enabled and see what happens.

[markwolff]

Is the error still happening with the debug information turned off?
Obviously, turning it on should not disable telemetry so it is probably something we will look into in a future milestone. Reopen if this did not solve your issue though!

[cyrixmorten]

Hi @markwolff

Now have enableDebug set to false and there are no longer errors thrown by the library.

However think you are right that there may be something to look into regarding telemetry not being sent when having debug enabled and the session renewal error is thrown.