Risksheet renders as a client-side JavaScript grid within Polarion LiveDoc pages. Browser support and behavior vary across platforms and browser engines.
For the best experience with Risksheet, use the latest version of Google Chrome or Microsoft Edge. Both browsers use the Chromium engine and provide full compatibility with all Risksheet features, including grid rendering, formula calculation, export operations, and baseline comparison.
Browser: Mozilla Firefox (all versions)Symptom: Clicking on Risksheet scrollbars causes the sheet to jump unexpectedly. The grid may scroll to an unintended position or select cells beneath the scrollbar area.Cause: Firefox treats scrollbar areas as part of the page content area, which triggers cell selection events when clicking on the scrollbar. Chromium-based browsers (Chrome, Edge) correctly isolate scrollbar clicks from page content interactions.Workaround: Use keyboard navigation (Page Up, Page Down, Arrow keys) for scrolling, or switch to Chrome or Edge as your primary browser.Priority: Tracked as a low-priority known issue due to very low Firefox usage among Risksheet users.
If you experience unexpected grid jumping when clicking scrollbars in Firefox, this is a known browser-specific issue. The recommended solution is to use Chrome or Edge for Risksheet work. See Keyboard Shortcuts for navigation alternatives.
The following table shows feature availability across supported browsers.
Feature
Chrome
Edge
Firefox
Safari
Grid rendering
✅ Full
✅ Full
✅ Full
➖ Verify
Cell editing
✅ Full
✅ Full
✅ Full
➖ Verify
Formula calculation
✅ Full
✅ Full
✅ Full
➖ Verify
Clipboard operations
✅ Full
✅ Full
✅ Full
➖ Verify
PDF export
✅ Full
✅ Full
✅ Full
➖ Verify
Excel export
✅ Full
✅ Full
✅ Full
➖ Verify
Baseline comparison
✅ Full
✅ Full
✅ Full
➖ Verify
Scrollbar interaction
✅ Normal
✅ Normal
⚠️ Known issue
➖ Verify
Freeze pane
✅ Full
✅ Full
✅ Full
➖ Verify
Context menu
✅ Full
✅ Full
✅ Full
➖ Verify
Review columns
✅ Full
✅ Full
✅ Full
➖ Verify
Configuration editor
✅ Full
✅ Full
✅ Full
➖ Verify
Safari compatibility has not been comprehensively documented in the available source material. If your organization uses Safari, test all critical Risksheet features in your specific browser version before deploying to production users.
The baseline comparison feature adds the comparingTo URL parameter when entering comparison mode and removes it when exiting. This URL manipulation works in both standalone and iframe contexts across all supported browsers.
Browser
URL State Management
Comparison Display
Tooltip Rendering
Chrome
✅ Full
✅ Full
✅ Full
Edge
✅ Full
✅ Full
✅ Full
Firefox
✅ Full
✅ Full
✅ Full
Comparison mode features:
Ghost items: Placeholder rows for removed items display correctly across all supported browsers
Change detection: Added, removed, and modified indicators render consistently
Comparison tooltips: Hover tooltips showing change details use the comparison-tooltip CSS class
Show/hide unchanged: Toggle filtering works across all supported browsers
Risksheet includes an automatic session keep-alive mechanism that sends periodic heartbeat requests to prevent Polarion session timeout during long editing sessions. This feature relies on browser support for background HTTP requests.
Browser
Keep-Alive Behavior
Notes
Chrome
✅ Reliable
Background tabs may throttle requests after extended periods
Edge
✅ Reliable
Same Chromium behavior as Chrome
Firefox
✅ Reliable
Background tab throttling may apply
If you experience session timeouts during extended risk analysis sessions, ensure your browser tab is not being aggressively throttled by the browser’s power-saving features. Keeping the Risksheet tab in the foreground prevents throttling.
The Risksheet configuration editor opens in a new browser window. Ensure your browser’s pop-up blocker allows pop-ups from your Polarion server domain.
Feature
Requires Pop-up
Description
Configuration editor
Yes
Opens risksheet/configuration/ URL with project and document parameters
Open Row Item
Yes
Opens work item in Polarion’s standard editor
Open Linked Item
Yes
Opens linked work item in new window/tab
Risksheet URL navigation
No
In-page navigation via URL parameters
If the configuration editor fails to open, check your browser’s pop-up settings and add the Polarion server URL to the allowed list.
Risksheet grid performance depends on the browser’s JavaScript engine and rendering capabilities. The following factors affect performance across browsers:
Factor
Impact
Recommendation
Number of visible rows
High — each row requires DOM rendering and cell formatting
Use level collapse and filtering to reduce visible rows
Number of columns
High — each column adds rendering overhead per row
Medium — JavaScript functions execute per cell render
Optimize decorator functions; avoid complex logic
Formula columns
Medium — formulas compute on each value change
Keep formula expressions efficient
Server-rendered columns
Low — rendered once on load from server
Minimal browser impact after initial load
Baseline comparison
High — doubles data volume and adds comparison overlay
Limit comparison scope when possible
Specific performance benchmarks for row/column counts vary by browser version, hardware, and Polarion server configuration. Test with representative data volumes on your target browser before setting performance expectations.
When debug is enabled in your Risksheet configuration, diagnostic information is output to the browser developer console. Access the console in each browser:
Browser
Open Developer Console
Shortcut
Chrome
Menu > More Tools > Developer Tools > Console
F12 or Ctrl+Shift+J
Edge
Menu > More Tools > Developer Tools > Console
F12 or Ctrl+Shift+J
Firefox
Menu > Web Developer > Web Console
F12 or Ctrl+Shift+K
Safari
Develop > Show Web Inspector > Console
Cmd+Option+C (enable Develop menu first)
Debug output includes ghost status, column ID, cell value, full item data, and comparison manager state. See Keyboard Shortcuts for details on the Debug context menu action.
