| 摘要 |
Third parties are prevented from obtaining proprietary information that a content provider might not want to expose. Targeting data used to enable a selection service to select targeted or supplemental content can be passed as an anchor in a uniform resource locator or stored in a parent file for a page. A second file can reside in an inline frame (iFrame) on the page that is able to pull the targeting data from the parent page, if in the same domain, or parse the parameters from the data in the anchor. The targeting data can be submitted to a selection service, which can return parameters specifying content or a type of supplemental content to be displayed. The request submitted to a supplemental content provider can come from a nested iFrame in a separate domain, such that the targeting data or source of the parent file cannot be obtained through the nested iFrame.
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