General Web Client limitations

The following list summarizes the major general limitations in the current release of the Web Client.

• Multi-Galaxy configurations are not supported with this version of the Web Client.

• Secured and verified writes are not supported in this version of the Web Client.

• The graphics used to indicate InTouch HMI applications and OMI ViewApps on the initial Web Client page cannot be customized.

• Embedded .NET controls are not supported.

• Security certificates with Public Domain Names are currently not supported by the Web Client.

• History playback is not supported in this version of the Web Client.

• The OMI Web Client cannot show multiple screens at once. If an InTouch HMI application and OMI ViewApp uses multiple screens, you can switch between screens in the Web Client window.

• InTouch HMI application and OMI ViewApp cannot be previewed based on how they will appear in the OMI Web Client. The Preview button on the ViewApp editor shows a desktop client preview only.

• A URL cannot be generated for a page displayed in the Web Client and then embed that URL in another product to access the content.

• By default, you cannot place the OMI Web Client window in an iFrame, as doing so could make the OMI Web Client vulnerable to a "clickjacking" attack. If you need to put the Web Client in an iFrame, see Place the Web Client in an iFrame.

• In very complex graphics with a large number (thousands) of references, some references may take a very long time to resolve when compared to the desktop client.

• In AVEVA OMI, if a user increases the size of a layout during runtime to exceed the defined size of the panes in the layout, the panes will expand to fill the layout in OMI Web Client, even if they are set to fixed size.

• If you have upgraded the GR node from SP 2020 R2 SP1 to SP 2023 R2 SP1, but have not yet upgraded remote run-time nodes, communication between the GR node and run-time nodes will be lost until the remote nodes are upgraded. Therefore, InTouch HMI application and OMI ViewApp run-time data will not be updated on non-upgraded remote nodes until the remote nodes are upgraded to SP 2023 R2 SP1.

• This version of the OMI Web Client does not support InTouch-specific references. As a result, the OMI Web Client will not display run-time data from InTouch applications.

  Important! Several graphics in the Visualization folder incorporate elements or settings that are not supported by the Web Client. Before using a system graphic in a InTouch HMI application and OMI ViewApp that will be used with the Web Client, make sure that it will display properly on all devices where it may be accessed.

• When loading a graphic in the Web Client, unsupported features are logged as warnings in the Logger. A generated report will include the warning path.