Known Issues

These issues have been identified in previous releases and are known issues.

Browser issues

The following notes are specific to different web browsers.

Recommended browsers

It is highly recommended that you use Google Chrome or Mozilla Firefox. While Reflection ZFE supports Microsoft Internet Explorer (IE) 10+, there are known performance issues with Internet Explorer’s JavaScript engine that may negatively affect the end user experience with Reflection ZFE.

There are remedies to both these issues, however the easiest solution is to use a different browser.

Key mapping issues with different browsers

Certain keys on a numeric keypad and some browser-specific keys cannot be mapped. For example, in Chrome, Ctrl+n and Ctrl+w cannot be mapped.

Security issues

These are noted security considerations.

Host specific issues

The following are issues that are specific to different host types.

Issues encountered with VT hosts

Type

Description

Performance issues

  • Heavy text output, such as form “Is-IR” may cause slow performance

  • Scrolling regions may appear slow or choppy

  • Cursor movememnt may be slow or choppy

  • Internet Explorer is particularly slow, and performance degrades further when used for rows and columns.

Character sets

  • Graphical characters and some character sets are not supported.

  • Some non-English characters may cause the terminal display to freeze.

Other VT issues

  • Insert/delete column (DECIC, DECDC) may fail.

  • VT400 will not recognize DECSCL.

Field outlines in 3270 sessions

The 3270 attributes for field outlines are not fully supported. Reflection ZFE currently supports underline and overline; however, left vertical line, right vertical line, and combinations of the four line types are not yet supported.