Web 2.0 application based on JavaScript is a wide-spread application domain today as it delivers rich, interactive user experiences. However, with the increasing number of browsers and platforms on which the applications can be executed, cross-browser incompatibilities (XBIs) are becoming a serious problem for organizations to develop modern JavaScript-based Web applications. Although lots of XBIs detection techniques have been proposed, there are still some limitations: 1) existing techniques are prone to generating certain false positives/negatives that result from the fact that they ignore non-deterministic events (e.g., timer, asynchronous request/response) inside the browser; 2) detection process is inefficient, as the same elements located in different pages will be repeatedly checked even if they stay unchanged after an event is triggered. Leveraging existing record/replay technique, we proposed X-Check, a novel cross-browser testing technique, which supports automated XBIs detection effectively. To improve the efficiency of XBIs detection, this paper further designed an incremental detection algorithm by only checking DOM-mutated and layout-changed nodes. Our empirical evaluation shows that X-Check is effective and efficient. For the selected 21 real-world Web applications, it identifies XBIs with a fairly high precision (83 percent) and recall (93 percent), and improves the performance of XBIs detection about 5.79 times compared to its non-optimized version.

With the advent of Web 2.0 application, and the increasing number of browsers and platforms on which the applications can be executed, cross-browser incompatibilities (XBIs) are becoming a serious problem for organizations to develop web-based software. Although some techniques and tools have been proposed to identify XBIs, a number of false positives and false negatives still exist as they cannot assure the same execution when the application runs across different browsers. To address this limitation, leveraging existing record/replay technique, we developed X-Check, a novel cross-browser testing technique and tool, which supports automated XBIs detection with high accuracy. Our empirical evaluation shows that X-Check is effective and improves the state of the art.

With the advent of Web 2.0 application, and the increasing number of browsers and platforms on which the applications can be executed, cross-browser incompatibilities (XBIs) are becoming a serious problem for organizations to develop web-based software. Although some techniques and tools have been proposed to identify XBIs, they cannot assure the same execution when the application runs across different browsers as only explicit user activity is considered, and thus prone to generating both false positives and false negatives. To address this limitation, this paper describes X-Check, a platform that enables cross-browser testing as a service by leveraging record/replay technique. Comparing to existing techniques and tools, X-Check supports to detect cross-browser issues with high accuracy. It also provides useful support to developers for diagnosis and (eventually) elimination of XBIs. Our empirical evaluation shows that X-Check is effective, improves the state of the art.

With the advent of Web 2.0 application, and the increasing number of browsers and platforms on which the applications can be executed, cross-browser incompatibilities (XBIs) are becoming a serious problem for organizations to develop web-based software with good user experience. Although some techniques and tools have been proposed to identify XBIs, some XBIs are still missed as only partial state space is explored (by the crawler) in the testing environment. To address this limitation, based on record/replay technique, this paper proposed a crowdsourcing framework to detect cross-browser issues for Web application deployed in the field. Our empirical evaluation shows that the proposed technique is effective and efficient, improves on the state of the art.