fix: allow trailing slash in techdocs navigation

Signed-off-by: Laura Ceconi <laura.cec@hotmail.com>

.changeset/curvy-months-appear.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs': patch
+---
+
+Re-add the possibility to have trailing slashes in Techdocs navigation.

plugins/techdocs/src/reader/components/TechDocsReaderPageContent/useNavigateUrl.test.tsx

@@ -40,12 +40,6 @@ describe('resolveUrlToRelative', () => {
     const baseUrl = 'http://localhost:3000/instance';
     expect(resolveUrlToRelative(url, baseUrl)).toBe('/test');
   });
-
-  it('removes trailing slashes on the URL when present', () => {
-    const url = 'http://localhost:3000/test//';
-    const baseUrl = 'http://localhost:3000';
-    expect(resolveUrlToRelative(url, baseUrl)).toBe('/test');
-  });
 });
 
 const Component = ({ to }: { to: string }) => {

plugins/techdocs/src/reader/components/TechDocsReaderPageContent/useNavigateUrl.tsx

@@ -32,8 +32,7 @@ export function resolveUrlToRelative(url: string, baseUrl: string) {
 
   const relativeUrl = url
     .replace(appUrlPath, '')
-    // Remove any leading and trailing slashes.
-    .replace(/\/+$/, '')
+    // Remove any leading slashes.
     .replace(/^\/+/, '');
   const parsedUrl = new URL(`http://localhost/${relativeUrl}`);
   return `${parsedUrl.pathname}${parsedUrl.search}${parsedUrl.hash}`;