* feat(preset-html5): add feature to filter javascript: urls
* fix(plugin-helper): escape html in attrs
* fix(plugin-helper): tests for html escape
* refactor(preset-html5): remove html escape from preset
* feat(preset): add ability to pass and extend preset options
* feat(parser): write test for only allowed tags parsing
* chore(parser): rename only allowed test
* fix(parser): only allowed tag rendering
* fix(plugin-helper): add new TagNode toString tests
* attrsToString: To avoid some malformed attributes
Error:
```
TypeError: Cannot convert undefined or null to object
at Function.keys (<anonymous>)
at attrsToString
```
This errors appears if no `attrs` setted in custom tag:
```
const BBcodePresetTemp = BbobPresetHTML5.extend((tags: any) => {
tags.br = () => ({
tag: 'br',
// attrs: {}, // <-- Comment this line for error and add [br] to text
content: null,
});
return tags;
});
```
Nikolay Kostyurin