Isolating web programs in modern browser architectures

14 years 1 months ago

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Many of today’s web sites contain substantial amounts of client-side code, and consequently, they act more like programs than simple documents. This creates robustness and performance challenges for web browsers. To give users a robust and responsive platform, the browser must identify program boundaries and provide isolation between them. We provide three contributions in this paper. First, we present abstractions of web programs and program inand we show that these abstractions clarify how browser components interact and how appropriate program boundaries can be identiﬁed. Second, we identify backwards compatibility tradeoffs that constrain how web content can be divided into programs without disrupting existing web sites. Third, we present a multi-process browser architecture that isolates these web program instances from each other, improving fault tolerance, resource management, and performance. We discuss how this architecture is implemented in Google Chrome, and we provide ...

Charles Reis, Steven D. Gribble

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