"Astroturfing", is another issue, where the true sponsor of a campaign is hidden behind a grassroots initiative.
Another wrench in the works is of course dynamism. Web developers love gratuitous JavaScript which means that any site that loads at least one script could arbitrarily manipulate the underlying HTML document before or during rendering. This is simply the nature of the Web. A different and equally interesting investigation would involve instrumenting a Web renderer to extract actually evaluated regexes, either in JavaScript or through the pattern attribute.。TG官网-TG下载对此有专业解读
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