Change Details

**List of steps to reproduce**: * Try obtaining HTML for the following template: https://en.wikipedia.org/w/index.php?title=Template:; * Open: https://en.wikipedia.org/api/rest_v1/page/html/Template:%3B **What happens?**: Error: ``` { "type": "https://mediawiki.org/wiki/HyperSwitch/errors/bad_request", "method": "get", "detail": "title-invalid-empty", "uri": "/en.wikipedia.org/v1/page/html/Template%3A" } ``` **What should have happened instead?**: HTML should be returned.

**List of steps to reproduce**: * Try obtaining HTML for the following template: [https://en.wikipedia.org/w/index.php?title=Template:;](https://en.wikipedia.org/w/index.php?title=Template:;) * Open: [https://en.wikipedia.org/api/rest_v1/page/html/Template:%3B](https://en.wikipedia.org/api/rest_v1/page/html/Template:%3B) **What happens?**: Error: ``` { "type": "https://mediawiki.org/wiki/HyperSwitch/errors/bad_request", "method": "get", "detail": "title-invalid-empty", "uri": "/en.wikipedia.org/v1/page/html/Template%3A" } ``` **What should have happened instead?**: HTML should be returned.

**List of steps to reproduce**: * Try obtaining HTML for the following template: [https://en.wikipedia.org/w/index.php?title=Template:;](https://en.wikipedia.org/w/index.php?title=Template:;) * Open: [https://en.wikipedia.org/api/rest_v1/page/html/Template:%3B](https://en.wikipedia.org/api/rest_v1/page/html/Template:%3B) **What happens?**: Error: ``` { "type": "https://mediawiki.org/wiki/HyperSwitch/errors/bad_request", "method": "get", "detail": "title-invalid-empty", "uri": "/en.wikipedia.org/v1/page/html/Template%3A" } ``` **What should have happened instead?**: HTML should be returned.