fix(dees-service-lib-loader): prevent horizontal scrollbar by offsetting xterm WidthCache measurement container

changelog.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## 2026-02-01 - 3.41.5 - fix(dees-service-lib-loader)
+prevent horizontal scrollbar by offsetting xterm WidthCache measurement container
+
+- Injects additional CSS into DeesServiceLibLoader to move xterm.js WidthCache measurement div off-screen horizontally (selector: body > div[style*="top: -50000px"][style*="width: 50000px"])
+- Fixes root cause where xterm creates a large-width measurement container (width: 50000px) on document.body that expands scrollWidth and causes a horizontal scrollbar
+- Change applied in ts_web/services/DeesServiceLibLoader.ts by concatenating the fix CSS into the injected stylesheet
+
 ## 2026-01-29 - 3.41.4 - fix()
 no changes
 

ts_web/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@design.estate/dees-catalog',
-  version: '3.41.4',
+  version: '3.41.5',
   description: 'A comprehensive library that provides dynamic web components for building sophisticated and modern web applications using JavaScript and TypeScript.'
 }

ts_web/services/DeesServiceLibLoader.ts

@@ -193,9 +193,20 @@ export class DeesServiceLibLoader {
     const response = await fetch(cssUrl);
     const cssText = await response.text();
 
+    // Fix for xterm.js WidthCache measurement container causing horizontal scrollbar
+    // xterm.js creates this on document.body with width: 50000px, top: -50000px
+    // Moving it off-screen horizontally prevents scrollWidth expansion
+    const xtermMeasurementFix = `
+/* Fix xterm.js WidthCache measurement container causing horizontal scrollbar */
+/* xterm creates this on document.body - move it off-screen horizontally too */
+body > div[style*="top: -50000px"][style*="width: 50000px"] {
+  left: -50000px !important;
+}
+`;
+
     const style = document.createElement('style');
     style.id = styleId;
-    style.textContent = cssText;
+    style.textContent = cssText + xtermMeasurementFix;
     document.head.appendChild(style);
   }