Detailed explanation of html browser automatically adding

 tag

Problem scenario:

I clicked a request on page A, opened a new page (B), and passed HttpServlet on the backend Response.getWriter().write(html) method is used to write the information into the newly opened page B; [Digression: The reason for this is to solve the problem of the newly opened page being intercepted by the browser]

But there is no problem in IE6, 7, 8, ff; but in chrome, my newly written content is actually placed in the

 tag; 
 tag">
About html 
 tag: 
pre element can define pre-formatting ized text. Text enclosed in a pre element usually preserves whitespace and newlines. The text will also be rendered in a fixed-width font. 
 A common application of tags is to represent computer source code. 
 Thoughts on the problem: 
After discovering this problem, the first thing I thought of was: This should be because different browsers process code text information differently, chrome My form is displayed on the page as text. And  is not an element in html format; so I think everything should be fine once this problem is solved. 
At this time, I thought of the setting of htmlmeta information
 Content-Type" content="text/html ;charset=utf-8"
 /> Setting this attribute should solve the problem. 
After checking the document, it suddenly became clear: 
1. text/html is the text in html format 
2. text/plain is unformatted Text
3. text/xml ignores the encoding format specified by the xml header and defaults to us-ascii encoding
4. application/xml will Encode according to the encoding format specified by the xml header 
 Solution: 
response.setHeader("Content-Type", "text/html");

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 tag. For more information, please follow other related articles on the PHP Chinese website!