revv00 's Profile

用户是不是有需求？现有的产品是不是已经将用户需求满足得很好？百度来做这个的优势在哪里？

当然，永远正确也就意味着少承担风险。

Any request to a site

No cookies or implicit authentication information is sent with the POST
operation. Any authentication information must be placed in the send
data or in the url. The JSON text that was serialized from the
send data is used as the body of the request. The character encoding
is UTF-8. An implementation may choose to gzip the JSON text.

In order to exchange information across frames, the pages in those frames must share the same root domain.
For example, server111.pxl8.com and server222.pxl8.com can pass data to one another as long as they each declare

Alternatives

. Unfortunately, this approach creates substantial coupling between the server and browser. In contrast, note how the examples above used completely generic web services - the services only know how to add numbers together and nothing about the calling context. That's possible because all behaviour was encapsulated in the onload() function.

the script will be added to the DOM, whereas it would disappear after an XMLHttpRequest callback eval'd it.

Bookmarklets have size limitations, which differ based on browser and platform, since they must fit into a certain number of characters. They can also be difficult to maintain for more sophisticated scripts, since every line of JavaScript code has to be jammed into one line.