[v10.1.x] Subpath: On stripBaseFromUrl, check if the segmentToStrip is followed by a '/' otherwise dont replace it (#75617)

packages/grafana-data/src/utils/location.test.ts

@@ -50,6 +50,10 @@ describe('locationUtil', () => {
         const urlWithoutMaster = locationUtil.stripBaseFromUrl('/thisShouldRemain/subUrl/');
         expect(urlWithoutMaster).toBe('/thisShouldRemain/subUrl/');
       });
+      test('relative url with similar suburl', () => {
+        const urlWithoutMaster = locationUtil.stripBaseFromUrl('/subUrl-backup/thisShouldRemain/');
+        expect(urlWithoutMaster).toBe('/subUrl-backup/thisShouldRemain/');
+      });
       test('absolute url', () => {
         const urlWithoutMaster = locationUtil.stripBaseFromUrl('http://www.domain.com:9877/subUrl/thisShouldRemain/');
         expect(urlWithoutMaster).toBe('/thisShouldRemain/');
@@ -64,6 +68,12 @@ describe('locationUtil', () => {
         const urlWithoutMaster = locationUtil.stripBaseFromUrl('http://www.domain.com:9877/thisShouldRemain/subUrl/');
         expect(urlWithoutMaster).toBe('http://www.domain.com:9877/thisShouldRemain/subUrl/');
       });
+      test('absolute url with similar suburl', () => {
+        const urlWithoutMaster = locationUtil.stripBaseFromUrl(
+          'http://www.domain.com:9877/subUrl-backup/thisShouldRemain/'
+        );
+        expect(urlWithoutMaster).toBe('http://www.domain.com:9877/subUrl-backup/thisShouldRemain/');
+      });
     });
 
     describe('when appSubUrl not configured', () => {

packages/grafana-data/src/utils/location.ts

@@ -43,7 +43,9 @@ const stripBaseFromUrl = (urlOrPath: string): string => {
     segmentToStrip = `${window.location.origin}${appSubUrl}`;
   }
 
-  return urlOrPath.length > 0 && urlOrPath.indexOf(segmentToStrip) === 0
+  // Check if the segment is followed by a '/' so it does not replace incorrect similarly named segments
+  // i.e. /grafana should not replace /grafanadashboards
+  return urlOrPath.length > 0 && urlOrPath.indexOf(segmentToStrip + '/') === 0
     ? urlOrPath.slice(segmentToStrip.length - stripExtraChars)
     : urlOrPath;
 };