Adobe Target At.js Download

[Ciara Geddis]

The at.js library is the implementation library for client-side implementation of Adobe Target. The at.js library improves page-load times for web implementations and provides better implementation options for single-page applications. at.js is the recommended implementation library and is updated frequently with new capabilities. We recommend that all customers implement or migrate to the latest version of at.js.


The following diagrams help you understand the workflow of at.js 2.x with Views and how this enhances the SPA integration. To get a better introduction of the concepts used in at.js 2.x, see Single Page Application implementation.



adobe target at.js download

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Now, wherever triggerView() is implemented on your SPA, the Views and actions are retrieved from cache and shown to the user without a server call. triggerView() also makes a notifications request to the Target backend in order to increment and record impression counts. For more information on at.js for SPAs with Views, see Single Page Application implementation.


Implement Target using a third-party tag manager: Tags in Adobe Experience Platform are the preferred method to implement Target; however, you can also implement Target using a third-party tag manager, including Tealium, Ensighten, and Google Tag. For a list of benefits of using Launch, see Advantages of implementing at.js using the Adobe Target extension.


I recently got below Alert when logged into Adobe Target, so I started migrating mbox.js to at.js and as part of that installed Adobe TargetV2 Launch extension(we are using Adobe Launch for Tag Management) and modified the All Pages - Library loaded rule, and we had mbox.js calls replaced with , which i am thinking is pretty much the upgrade process, but we started seeing Uncaught ReferenceError: CQ_Analytics is not defined console error


We are also implementing Component Targeting using Target Engine, but the targeted experience is loading and the disappearing on the page for the components which had some action, Is that because of this as well? Can someone guide please?


Thanks for the response, CQ_Analytics is undefined error is gone with addition of cq.widgets category call in the page load component and making the launch call Asynchronous , We are injecting at.js using Adobe Launch Target extension , but targeted components don't render any dynamic functionality ,


For example we have a Hero Carousel Component targeted where the carousel images doesn't change and the cat button on the carousel doesn't work , seems to be some load order issue or some JavaScript issue, any ideas please?


I am loading the launch script by Cloud Configuration (secured via IMS), there's an option to switch between sync and async , Though i load it asynchronously the targeted component is not loading as it should


In the meantime, you could try and grab these values and pass them as custom parameters and then use them for targeting . For example, just pass a custom parameter named "browserWidth" and set it to document.body.offsetWidth . You could also use window.screen object to get the resolution of the screen (i.e. width and height of the screen).






Thank you for reaching out! As outlined in Upgrading from at.js 1.x to at.js 2.x the browserWidth can no longer be used to create an audience out of the box with at.js 2.x as it is not captured as an "mbox" parameter. We do have an enhancement request logged internally for this feature.


Thanks for the response! I don't have access to the company code base or Adobe Launch or DTM. How would you suggest passing the parameters before at.js 2.x is loaded? I've tried document.body.offsetWidth before in a profileScript, but I would receive an error stating my syntax was invalid.


Tags in Adobe Experience Platform are the preferred method to upgrade at.js. Extension developers continually add new features to their extensions, and frequently fix bugs. These updates are packaged into new versions of an extension and made available in the Adobe Experience Platform catalog as upgrades. For more information, see Extension upgrades in the Tags overview guide.6+


The Target at.js JavaScript library now collects feature usage and performance telemetry data. Personal data is not collected. Opt-out for this feature is available by setting telemetryEnabled to false in targetGlobalSettings. For more information, see telemetryEnabled in targetGlobalSettings.


at.js 2.x provides rich feature sets that equip your business to execute personalization on next generation client-side technologies. This new version is focused on upgrading at.js to have harmonious interactions with single page applications (SPAs).


In addition, at.js Version 1.6.2 also contains all of the enhancements and fixes included in at.js Version 1.6.1 and 1.6.0. These versions are no longer available for download. We recommend that you upgrade to version 1.6.2 if using 1.6.1 or 1.6.0


For browsers that support it, at.js 1.5.0 switches to MutationObserver for selector polling. Versions prior to at.js 1.0.0 used a MutationObserver polyfill, which proved to be problematic. To avoid the polyfill issues, version1.5.0 uses the following pseudo code to decide which scheduling mechanism to use:


at.js requests now use GET, but it will switch to POST when the URL size exceeds 2048 characters. There is a new property named urlSizeLimit where you can increase the size limit if necessary. This change allows Target to align at.js to AppMeasurement, which uses the same technique.


Target now enforces that the mbox key in the adobe.target.applyOffer(options) function is used. This key has been required in the past, but Target now enforces its use to ensure that Target has proper validation and customers are using the function correctly.


at.js has improved event and click tracking functionality. at.js uses navigator.sendBeacon() to send event tracking data and will fallback to synchronous XHR when navigator.sendBeacon() is not supported. This fallback mostly affects Internet Explorer 10 and 11 and some versions of Safari. Safari will add support for navigator.sendBeacon() in the upcoming iOS 11.3 release.


at.js can now render offers even when a page is opened in background tabs. Some Target Customers encountered an issue when requestAnimationFrame() was disabled because of the browser throttling behavior for background tabs.


at.js 1.3.0 no longer supports content delivery on Microsoft Internet Explorer 9. For a list of supported browsers, see Supported Browsers. Going forward, all requests are executed via XMLHttpRequest with CORS support with no JSONP requests. This change greatly improves security.


Redirect offer support for A4T. After you download and install at.js version 0.9.6, you can use redirect offers in activities that use Adobe Analytics as the Reporting Source for Target (A4T). Besides at.js version 0.9.6, there are other minimum requirements your implementation must meet in order to use redirect offers and A4T. For more information and additional important information you should know, see Redirect Offers - A4T FAQ.


Prior to at.js 0.9.6, when the Visitor API was present on the page and the visitorApiTimeout setting was too aggressive, Target could run into a situation when no MCID data was sent in the Target request. This could lead to issues like unstitched hits in Analytics when using A4T.


This behavior has been changed in at.js 0.9.6, even if the visitorApiTimeout is set to say 1 ms, Target will try to collect SDID, tracking servers, and customer IDs data and send those in the Target request.


The algorithm for extracting the top-level domain that should be used when saving cookies has changed in at.js version 0.9.6. Because of this change, cookies cannot be saved to addresses that use IP. Most of the time, IP addresses are used for testing purposes, but as workarounds you can use DNS entries or adjust the hosts file on a local box.


Added secureOnly setting that indicates whether at.js should use HTTPS only or be allowed to switch between HTTP and HTTPS based on the page protocol. This is an advanced setting that defaults to False and can be overridden via targetGlobalSettings.


This new API gives developers access to certain jQuery modules used in at.js to develop extensions (aka plugins) for the library. There are a few implications for this change. This impact only those users who are using these features:


The goal of this notification system is to provide more insight into what at.js is doing on the page and when there are issues. A common issue seen with the VEC is that an IT release changes the page, a VEC selector breaks, and the test stops delivering content correctly. A goal of this notification system is to make this delivery issue known to the page, so developers can access this information, pass it to a system like Adobe Analytics, and alerts can be sent to the business owners that their test broke.


at.js prior to version 1.2.0 couldn't save cookies to IP based addresses. This has been addressed in at.js 1.2.0. You can find more details here: at.js Version Details. Also you might check at.js FAQ, the FAQ tries to cover issues like these, here is the FAQ: at.js Frequently Asked Questions.


The newest version of at.js in Adobe Target provides rich feature sets that equip your business to execute personalization on next-generation, client-side technologies. This new version is focused on upgrading at.js to have harmonious interactions with single page applications (SPAs).

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