scrapy issue js source

```
save content from https://pastebin.com/cu4dHdtG to js_source.html. Then run
scrapy shell ./js_source.html
Code issued at '5.5&quot;</p>', when re.compile run, it did converted to '5.5"</p>'
```
import re
import json
pattern = re.compile(r"\"fields\": {.*?}}\W+},\W+\"", re.MULTILINE | re.DOTALL)
json_source = response.xpath("//script[contains(., 'app.run({')]/text()").re(pattern)[0].replace(',\n        "', '').replace('}\n        }', '}').replace('"fields": ', '')

json_data = json.loads(json_source)