Univention Bugzilla – Bug 42719
UMC sticky module header has bad scroll performance
Last modified: 2019-01-03 07:18:39 CET
The module header widget sets the height of the header on every scroll event which causes the browser to repaint the page even if not necessary. This causes a significant frame drop especially on mobile. if (sticky) { this._moduleHeaderHeight = this._moduleHeaderHeight || geometry.getContentBox(this.domNode).h; this._cancelRemoveModuleHeaderHeight(); domStyle.set(this.domNode, 'height', this._moduleHeaderHeight + 'px'); }
This issue has been filled against UCS 4.1. The maintenance with bug and security fixes for UCS 4.1 has ended on 5st of April 2018. Customers still on UCS 4.1 are encouraged to update to UCS 4.3. Please contact your partner or Univention for any questions. If this issue still occurs in newer UCS versions, please use "Clone this bug" or simply reopen the issue. In this case please provide detailed information on how this issue is affecting you.