**Steps to replicate the issue** (include links if applicable):
* Visit https://www.wikifunctions.org/wiki/Z10041
* Go to the list of test cases
* View the details of Z10043 ("language of L301993 at revision 1202251564 is 'Q9610'") using Z10042 ("(!) get lexical category from Lexeme JSON (Python)")
**What happens?**:
The test fails with Validator Error Summary "[Z539/wrong content type]", despite the "Expected Result" and the "Actual Result" being identical.
**What should have happened instead?**:
The test passes because the "Expected Result" and the "Actual Result" are identical.
**Other information** (browser name/version, screenshots, etc.):
For comparison, https://www.wikifunctions.org/wiki/Z10222 has this same problem, but https://www.wikifunctions.org/view/bn/Z10037 does not have this problem.