Merge pull request #5641 from segmentio/prigiattiperrut-patch-3

Fix the provided snippet.md

Author: forstisabella

src/connections/destinations/catalog/optimizely-web/index.md

@@ -229,21 +229,23 @@ For example, let's say you run a redirect experiment on page `http://home.com` t
 
 Our Optimizely Web destination detects this and send the effective referrer value as a property of the subsequent Experiment Viewed. Segment also overrides the `context.page.referrer` with the effective referrer.
 
-More importantly, to send the true referrer value with the initial `page` call inside the Segment snippet, you can look up `window.optimizelyEffectiveReferrer`, and if it exists, you can pass that into your `page` call. This is how you might modify your Segment snippet:
+More importantly, to send the true referrer value with the initial `page` call inside the Segment snippet, you can look up `window.optimizelyEffectiveReferrer`, and if it exists, you can pass that into your `page` call. This is how you might modify your Segment snippet to pass the extra code inside [ready()](/docs/connections/sources/catalog/libraries/website/javascript/#ready) so its only called after Optimizely SDK has finished loading:
 
 ```javascript
-<script type="text/javascript">
-  !function(){var analytics=window.analytics=window.analytics||[];if(!analytics.initialize)if(analytics.invoked)window.console&&console.error&&console.error("Segment snippet included twice.");else{analytics.invoked=!0;analytics.methods=["trackSubmit","trackClick","trackLink","trackForm","pageview","identify","reset","group","track","ready","alias","debug","page","once","off","on","addSourceMiddleware","addIntegrationMiddleware","setAnonymousId","addDestinationMiddleware"];analytics.factory=function(t){return function(){var e=Array.prototype.slice.call(arguments);e.unshift(t);analytics.push(e);return analytics}};for(var t=0;t<analytics.methods.length;t++){var e=analytics.methods[t];analytics[e]=analytics.factory(e)}analytics.load=function(t,e){var n=document.createElement("script");n.type="text/javascript";n.async=!0;n.src="https://cdn.segment.com/analytics.js/v1/"+t+"/analytics.min.js";var a=document.getElementsByTagName("script")[0];a.parentNode.insertBefore(n,a);analytics._loadOptions=e};analytics.SNIPPET_VERSION="4.1.0";
+<script>
+  !function(){var analytics=window.analytics=window.analytics||[];if(!analytics.initialize)if(analytics.invoked)window.console&&console.error&&console.error("Segment snippet included twice.");else{analytics.invoked=!0;analytics.methods=["trackSubmit","trackClick","trackLink","trackForm","pageview","identify","reset","group","track","ready","alias","debug","page","once","off","on","addSourceMiddleware","addIntegrationMiddleware","setAnonymousId","addDestinationMiddleware"];analytics.factory=function(e){return function(){if(window.analytics.initialized)return window.analytics[e].apply(window.analytics,arguments);var i=Array.prototype.slice.call(arguments);i.unshift(e);analytics.push(i);return analytics}};for(var i=0;i<analytics.methods.length;i++){var key=analytics.methods[i];analytics[key]=analytics.factory(key)}analytics.load=function(key,i){var t=document.createElement("script");t.type="text/javascript";t.async=!0;t.src="https://cdn.segment.com/analytics.js/v1/" + key + "/analytics.min.js";var n=document.getElementsByTagName("script")[0];n.parentNode.insertBefore(t,n);analytics._loadOptions=i};analytics._writeKey="YOUR_WRITE_KEY";;analytics.SNIPPET_VERSION="4.16.1";
   analytics.load("YOUR_WRITE_KEY");
 
-  /* MODIFIED SECTION */
+
+   analytics.ready(function() {
+    /* MODIFIED SECTION */
   // Hey did Optimizely set an effective referrer?
   if (window.optimizelyEffectiveReferrer) var referrer = window.optimizelyEffectiveReferrer;
 
   // If they did, override the document.referrer
-  referrer ? analytics.page({ referrer: referrer }): analytics.page();
+  referrer ? analytics.page({ referrer: referrer }):analytics.page();
   /* MODIFIED SECTION */
-
+  });
   }}();
 </script>
 ```