flask-breadcrumbs

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Flask gets unhappy if routes don't return anything.

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Description

Single-line change to the first example. Avoids TypeError: The view function for 'index' did not return a valid response. The function either returned None or ended without a return statement. from Flask.

Checklist

Ticks in all boxes and 🟢 on all GitHub actions status checks are required to merge:

• [X] I'm aware of the code of conduct.
• [X] I've created logical separate commits and followed the commit message format.
• [N/A] I've added relevant test cases.
• [N/A] I've added relevant documentation.
• [N/A] I've marked translation strings (for relevant code).
• [N/A] I've followed the CSS/JS and React guidelines (for relevant code).
• [N/A] I've followed the web accessibility guidelines (for relevant code).
• [N/A] I've followed the user interface guidelines (for relevant code).
• [N/A] I've identified the copyright holder(s) and updated copyright headers for touched files (>15 lines contributions).
• [X] I've NOT included third-party code (copy/pasted source code or new dependencies).

Third-party code

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