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sourcemiddleware2.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Analytics.js Middleware Demo to drop context field "sorce"</title>
<script>
!function(){var i="analytics",analytics=window[i]=window[i]||[];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","screen","once","off","on","addSourceMiddleware","addIntegrationMiddleware","setAnonymousId","addDestinationMiddleware","register"];analytics.factory=function(e){return function(){if(window[i].initialized)return window[i][e].apply(window[i],arguments);var n=Array.prototype.slice.call(arguments);if(["track","screen","alias","group","page","identify"].indexOf(e)>-1){var c=document.querySelector("link[rel='canonical']");n.push({__t:"bpc",c:c&&c.getAttribute("href")||void 0,p:location.pathname,u:location.href,s:location.search,t:document.title,r:document.referrer})}n.unshift(e);analytics.push(n);return analytics}};for(var n=0;n<analytics.methods.length;n++){var key=analytics.methods[n];analytics[key]=analytics.factory(key)}analytics.load=function(key,n){var t=document.createElement("script");t.type="text/javascript";t.async=!0;t.setAttribute("data-global-segment-analytics-key",i);t.src="https://cdn.segment.com/analytics.js/v1/" + key + "/analytics.min.js";var r=document.getElementsByTagName("script")[0];r.parentNode.insertBefore(t,r);analytics._loadOptions=n};analytics._writeKey="G5BwWiwo7E5XCw85h43neqDn59j6KCTp";;analytics.SNIPPET_VERSION="5.2.0";
analytics.load("G5BwWiwo7E5XCw85h43neqDn59j6KCTp");
analytics.page();
}}();
</script>
<script>
// Middleware to drop context field "sorce"
window.analytics.addSourceMiddleware(({ payload, next }) => {
if (payload.obj.context?.campaign?.sorce) {
delete payload.obj.context.campaign.sorce;
}
next(payload);
});
</script>
</head>
<body>
<h1>Analytics.js Middleware Demo</h1>
<button id="test-button">Run Middleware Test</button>
<script>
// Mock event payload
const mockPayload = {
obj: {
context: {
campaign: { sorce: "wrong" },
page: { search: "?utm_sorce=wrong" }
},
properties: {
search: "?utm_sorce=wrong"
}
}
};
// Test middleware on button click
document.getElementById("test-button").addEventListener("click", function () {
window.analytics.track(mockPayload);
});
</script>
</body>
</html>