This is not a blocker at all, but I was thinking we could make this code more succinct by adding a class attribute and method decorator, instead of manually overwriting methods to turn them off.

The base class would look like:

```python
class RenderPngTest(object):
    https_supported = True

    @https_only
    test_jsrender_https_html(self):
        # ....

    # ...
```