Skip to main content

​
Supported Browsers

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 Requirements

Risksheet requires the following browser capabilities:

​
Known Issues

​
Firefox Scrollbar Interaction

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.

​
Feature Support by Browser

The following table shows feature availability across supported browsers.
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.

​
Baseline Comparison in Different Browsers

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. 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

​
Session Management and Keep-Alive

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.
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.

​
Pop-up Window Requirements

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. If the configuration editor fails to open, check your browser’s pop-up settings and add the Polarion server URL to the allowed list.

​
Rendering Performance Considerations

Risksheet grid performance depends on the browser’s JavaScript engine and rendering capabilities. The following factors affect performance across browsers:
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.

​
Browser Developer Tools for Debugging

When debug is enabled in your Risksheet configuration, diagnostic information is output to the browser developer console. Access the console in each browser: 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. For optimal Risksheet experience:
Last modified on July 10, 2026