document: Subspace : secure cross-domain communication for web mashups Combining data and code from third-party sources has enabled a new wave of web mashups that add creativity and functionality to web applications . However , browsers are poorly designed to pass data between domains , often forcing web developers to abandon security in the name of functionality . To address this deficiency , we developed Subspace , a cross-domain communication mechanism that allows efficient communication across domains without sacrificing security . Our prototype requires only a small JavaScript library , and works across all major browsers . We believe Subspace can serve as a new secure communication primitive for web mashups .
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