# HTML Tag Fliter(Java org.jsoup.safety.Whitelist) ## HTML Tag Fliter Sometimes we would like to deleted some HTML-tags in a email(if we use html tag in our email.), to avoid hacker attack or something else. We can use org.jsoup.safety.Whitelist to achieve it. ## Documentation: https://jsoup.org/apidocs/org/jsoup/safety/Whitelist.html ## usage: ### addAttributes(String tag, String... attributes) Add a list of allowed attributes to a tag. ```java= addAttributes("a", "href") ``` ### addProtocols(String tag, String attribute, String... protocols) Add allowed URL protocols for an element's URL attribute. ```java= addProtocols("a", "href","http","https") ``` ### addTags(String... tags) Add allowed URL protocols for an element's URL attribute. ```java= addTags("html","body","p") ```