Fix navigation between sign-in/sign-up steps

Author: LauraBeatris

packages/clerk-js/src/core/clerk.ts

@@ -1827,7 +1827,7 @@ export class Clerk implements ClerkInterface {
 
     const setActiveNavigate: SetActiveNavigate = async ({ session }) => {
       await navigateIfTaskExists(session, {
-        baseUrl: displayConfig.signInUrl,
+        baseUrl: params.signInUrl ?? displayConfig.signInUrl,
         navigate: this.navigate,
       });
     };

packages/clerk-js/src/ui/contexts/components/SignIn.ts

@@ -126,7 +126,7 @@ export const useSignInContext = (): SignInContextType => {
       return;
     }
 
-    return navigate(`/tasks/${currentTaskKey}`);
+    return navigate(`../tasks/${currentTaskKey}`);
   };
 
   const taskUrl = clerk.session?.currentTask

packages/clerk-js/src/ui/contexts/components/SignUp.ts

@@ -121,7 +121,7 @@ export const useSignUpContext = (): SignUpContextType => {
       return;
     }
 
-    return navigate(`/tasks/${currentTaskKey}`);
+    return navigate(`../tasks/${currentTaskKey}`);
   };
 
   const taskUrl = clerk.session?.currentTask