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java.lang.ArrayIndexOutOfBoundsException: 4099	at com.gargoylesoftware.htmlunit.util.EncodingSniffer.indexOfSubArray(EncodingSniffer.java:716)	at com.gargoylesoftware.htmlunit.util.EncodingSniffer.sniffEncodingFromMetaTag(EncodingSniffer.java:351)	at com.gargoylesoftware.htmlunit.util.EncodingSniffer.sniffHtmlEncoding(EncodingSniffer.java:225)	at com.gargoylesoftware.htmlunit.util.EncodingSniffer.sniffEncoding(EncodingSniffer.java:134)	at com.gargoylesoftware.htmlunit.WebResponseImpl.getContentCharsetOrNull(WebResponseImpl.java:179)	at com.gargoylesoftware.htmlunit.WebResponseImpl.getContentCharset(WebResponseImpl.java:191)	at com.gargoylesoftware.htmlunit.WebResponseImpl.getContentAsString(WebResponseImpl.java:205)