Fix al.optimizely.get is not a function error

[markjensen74]

We were comparing our Snowplow pageviews against Google Analytics pageviews and wondering why Snowplow was always lower after we started to use 2.8.2 and Optimizely Summary flags in JS. Is anyone else getting this? This optimizely error inside Snowplow Tracker is causing pageview event not to fire, which probably explaining why we are lower than GA. I’m using chrome.

sp.js:63 Uncaught TypeError: al.optimizely.get is not a function
    at aI (sp.js:63)
    at aa (sp.js:63)
    at a2 (sp.js:66)
    at bp (sp.js:61)
    at aK (sp.js:67)
    at sp.js:73
    at ae (sp.js:69)
    at Object.trackPageView (sp.js:73)
    at s (sp.js:29)
    at new d.InQueueManager (sp.js:29)

[markjensen74]

From one of my lead developers:

Because that seems to be the problem… the getOptimizelyXData function in the SP tracker looks for optimizely to be defined, and then tries to call optimizely.get, which has been added in the optimizelyX JS API.

The getOptimizelyData function for the normal optimizely summary looks for both optimizely and optimizely.data to be defined before attempting access. And that’s getting called in the initialization of the tracker… So if it errors out there, we get nothing.

[chuwy]

Hey @markjensen74, can you provide some more context? Are you using both optimizelyXSummary and optimizelySummary?

[markjensen74]

@chuwy yes we have both enabled at the same time. here is our config:

 }(window, document, 'script', '//d1fc8wv8zag5ca.cloudfront.net/2.8.2/sp.js', 'GAplow'));

    window.GAplow('newTracker', 'cf-hosted-v2.8.2', this.spCollector, {
      appId: this.appId,
      platform: 'web',
      cookieDomain: '.generalassemb.ly',
      discoverRootDomain: true,
      cookieName: 'sp',
      encodeBase64: false,
      respectDoNotTrack: true,
      userFingerprint: true,
      userFingerprintSeed: 6485926835,
      pageUnloadTimer: 0,
      forceSecureTracker: false,
      useCookies: true,
      post: true,
      bufferSize: 1,
      maxPostBytes: 45000,
      cookieLifetime: 86400 * 180,
      contexts: {
        webPage: true,
        gaCookies: true,
        optimizelyXSummary: true,
        optimizelySummary: true
      }
    })

    window.GAplow('enableActivityTracking', 30, 30);
    window.GAplow('trackPageView');
    window.GAplow('enableErrorTracking');
    if (this.userCookieName) window.GAplow('setUserIdFromCookie', this.userCookieName);
  }

[chuwy]

Thanks, we're looking into it.

[alexanderdean]

We'll get this scheduled! Thanks for raising

[dannifreshbooks]

any updates on this?