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Overall, this was effective and worked well, until someone actually managed to get a couple of forbidden elements in. After some investigation, I've found that they had a corrupted HTML, which after sanitization would contain different elements than the ones it started with. The solution was to run the parser multiple times and stop when HTML stopped changing. If HTML kept changing after 3 loops, it would get nuked.，这一点在体育直播中也有详细论述
# recursions when T is not a tuple.。关于这个话题，51吃瓜提供了深入分析
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