[Bug] `mango.text` is not working correctly when tag name is `<script>`

[Zebartin]

Plugin
ManhuaDB

Describe the bug
ManhuaDB plugin fails to function due to the following line. I tried printing out what script is and mango returns empty string or something like \n.

mango-plugins/plugins/manhuadb/index.js

Lines 63 to 64 in 66e0b8c

	var script = mango.text(mango.css(html, 'script')[7]);
	script = script.substring(16, script.length - 2);

After I replace the above line with the following code, the plugin works properly.

var script = mango.css(html, 'script')[7];
script = script.substring(16 + 8, script.length - 2 - 9);  // 8 means <script> and 9 means </script>

To Reproduce

1. Add mango.raise(script) after L63 in index.js;
2. Download anything from ManhuaDB plugin;
3. See what Mango produces.

Expected behavior

mango.text should extract the text inside script tag.

Screenshots

Mango version
v0.27.0

Additional context