Problems caused by language

[zhangjiahaoGitHub]

The rendered dom is different.
As a result, the following one cannot adapt to the height.

[benjaminwil]

This seems to be an issue with Mermaid upstream, but I'm unsure exactly how to even report the issue to Mermaid.

I was able to reproduce using an emoji, as well. To quickly reproduce you can save a Gollum page with this content:

 Correct height Mermaid diagrams:

```mermaid
sequenceDiagram
    participant a as a
    participant b as b
    participant c as c
    participant d as d
```

```mermaid
pie title NETFLIX
    "Time spent looking for movie" : 90
    "Time spent watching it" : 10
```

Mermaid diagram frame is too small:

```mermaid
sequenceDiagram
    participant a as 😪
    participant b as b
    participant c as c
    participant d as d
```

Where the first two diagrams appear correctly and the last one appears the same way that the original issue message describes.

[dometto]

Could it be that gollum (gollum-lib in this case) is not properly setting the encoding of the text in the mermaid block?

I spoke too soon, I thought the issue was with the unicode text not being correctly rendered at all. It may be that this is something to do with mermaid's sandbox mode.

[benjaminwil]

I was able to make a much more exaggerated reproduction:

Correct:

```mermaid
pie title NETFLIX
    "one" : 90
    "two" : 10
```

Incorrect:

```mermaid
pie title NETFLIX
    "😪" : 90
    "😠" : 10
```

[dometto]

Looks like it is indeed an issue with sandbox mode, see here. If you remove the securityLevel: 'sandbox' from the configuration, both diagrams render as expected.