# \#resolved

**URL:** https://community.interop.io/tag/resolved/37.md

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## [Runtime Crash: "Cannot read properties of undefined (reading 'isStickyWindow')" When Using window.open() in Web Groups](https://community.interop.io/t/runtime-crash-cannot-read-properties-of-undefined-reading-isstickywindow-when-using-window-open-in-web-groups/609)

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**Author:** [@toni.petrov](https://community.interop.io/u/toni.petrov)\
**Replies:** 0\
**Last updated:** [June 24, 2026, 3:16pm UTC](https://community.interop.io/t/runtime-crash-cannot-read-properties-of-undefined-reading-isstickywindow-when-using-window-open-in-web-groups/609 "2026-06-24T15:16:12Z")

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When calling window.open() from within an application running in a web group, io.Connect Desktop throws the following runtime error: Cannot read properties of undefined (reading 'isStickyWindow') TypeError: Cannot read …