Before deciding how ExactDrive should serve a third-party creative, you must determine the ad tag format: HTML or JavaScript. HTML creatives are easily recognizable by their angle brackets (e.g. <html>). Your browser is designed to read HTML. We often see issues where the ad tag was labeled with the wrong tag format.
JavaScript, on the other hand, is a scripting language that defines variables and functions, which result in a certain output. ExactDrive must wrap JS creatives in HTML so that the browser is told that it is looking at a language. Note that often JavaScript ad tags come pre-wrapped in HTML, but do not be fooled. If the JS is surrounded by HTML markup tags, then the creative is HTML.
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