fix: feed detail and map improved back navigation

[Alessandro100]

closes #41

Summary:

Feed Detail and Feed Detail Map pages have improved "Back" navigation

Expected behavior:

Feed Detail Page

• If no back history -> will leave the website
• If has history -> go back to the previous navigation (excluding map page). (Feed search page including preserved search queries or other feed detail pages in the case of gtfs rt)

Feed Detail Map Page

• Back button will always go to it's corresponding feed detail page

Important

Explicitly not handling the functionality of directly to feed page -> back -> goes to feeds page due to the complexities of detecting a direct navigation in SSR. It's possible but adds too much complexity for what it accomplishes

Testing tips:

Play around with standard navigation and see if you get expected behaviour. For more precise tests, refere under

GTFS

1. From search page -> do a search query -> go to feed detail -> go to map -> back -> back -> land back at the search page with the search queries preserved

GTFS RT

1. On the page, visit various links from the related feeds -> then user the 'back' button or browser back and you should be brought back to the original page

Please make sure these boxes are checked before submitting your pull request - thanks!

• Run the unit tests with yarn test to make sure you didn't break anything
• Add or update any needed documentation to the repo
• Format the title like "feat: [new feature short description]". Title must follow the Conventional Commit Specification(https://www.conventionalcommits.org/en/v1.0.0/).
• Linked all relevant issues
• Include screenshot(s) showing how this pull request works and fixes the issue(s)

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Project	Deployment	Actions	Updated (UTC)
mobilitydatabase-web	Ready	Preview, Comment	Mar 19, 2026 0:23am

[Copilot]

Pull request overview

This PR improves “Back” navigation behavior on the Feed Detail and Feed Detail Map experiences to avoid exiting the app on direct entry and to make Map → Detail navigation consistent.

Changes:

• Updated the feed detail back button logic to fall back to /feeds when there’s no safe in-app history.
• Switched map view navigation from router.push to router.replace to avoid keeping the map page in the browser history stack.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/app/screens/Feed/components/FullMapView.tsx	Uses router.replace for map “back/close” actions to prevent returning to the map via browser back.
src/app/screens/Feed/components/FeedNavigationControls.tsx	Adds a handleBack helper intended to avoid navigating back out of the app on direct entry.

Applied guidance: vercel-react-best-practices (custom).

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[github-actions]

*Lighthouse ran on https://mobilitydatabase-h3ygqt1uo-mobility-data.vercel.app/ * (Desktop)
⚡️ HTML Report Lighthouse report for the changes in this PR:

Performance	Accessibility	Best Practices	SEO
🟢 99	🟢 96	🟢 100	🟢 100

*Lighthouse ran on https://mobilitydatabase-h3ygqt1uo-mobility-data.vercel.app/feeds * (Desktop)
⚡️ HTML Report Lighthouse report for the changes in this PR:

Performance	Accessibility	Best Practices	SEO
🟠 88	🟠 87	🟢 96	🟢 100

*Lighthouse ran on https://mobilitydatabase-h3ygqt1uo-mobility-data.vercel.app/feeds/gtfs/mdb-2126 * (Desktop)
⚡️ HTML Report Lighthouse report for the changes in this PR:

Performance	Accessibility	Best Practices	SEO
🔴 36	🟢 94	🟢 96	🟢 100

*Lighthouse ran on https://mobilitydatabase-h3ygqt1uo-mobility-data.vercel.app/feeds/gtfs_rt/mdb-2585 * (Desktop)
⚡️ HTML Report Lighthouse report for the changes in this PR:

Performance	Accessibility	Best Practices	SEO
🟠 79	🟠 83	🟢 100	🟢 100

*Lighthouse ran on https://mobilitydatabase-h3ygqt1uo-mobility-data.vercel.app/feeds/gbfs/gbfs-flamingo_porirua * (Desktop)
⚡️ HTML Report Lighthouse report for the changes in this PR:

Performance	Accessibility	Best Practices	SEO
🟠 88	🟢 94	🟢 96	🟢 100