GM.xmlHttpRequest: Difference between revisions
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==== <code>url</code> ==== | ==== <code>url</code> ==== | ||
:Value: String | :Value: String | ||
:Usage: <code>details.'''url''' = "<nowiki>http://www.greasespot.net/</nowiki>" | :Usage: <code>details.'''url''' = "<nowiki>http://www.greasespot.net/</nowiki>";</code> | ||
[[#top|top]] | [[#Syntax|back]] | [[#top|top]] | [[#Syntax|back]] | ||
| Line 70: | Line 70: | ||
==== <code>data</code> ==== | ==== <code>data</code> ==== | ||
:Value: String | :Value: String | ||
:Usage: <code>details.'''data''' = null; ''/* | :Usage: <code>details.'''data''' = null; ''/* some code */'' if (details.'''data''') { ''/* some code */'' }</code> | ||
:* <sup>[[#Notes|[1]]]</sup> | :* <sup>[[#Notes|[1]]]</sup> | ||
| Line 78: | Line 78: | ||
---- | ---- | ||
==== onload ==== | ==== onload ==== | ||
:Usage: <code>details.'''onload''' = function (''response'') { | :Usage: <code>details.'''onload''' = function (''response'') { ''/* some code */'' };</code> | ||
:Returns: Nothing, response Object | :Returns: Nothing, response Object | ||
| Line 84: | Line 84: | ||
==== onreadystatechange ==== | ==== onreadystatechange ==== | ||
:Usage: <code>details.'''onreadystatechange''' = function (''response'') { | :Usage: <code>details.'''onreadystatechange''' = function (''response'') { ''/* some code */'' };</code> | ||
:Returns: Nothing, response Object | :Returns: Nothing, response Object | ||
| Line 90: | Line 90: | ||
==== onerror ==== | ==== onerror ==== | ||
:Usage: <code>details.'''onerror''' = function (''response'') { | :Usage: <code>details.'''onerror''' = function (''response'') { ''/* some code */'' };</code> | ||
:Returns: Nothing, response Object | :Returns: Nothing, response Object | ||
| Line 119: | Line 119: | ||
==== status ==== | ==== status ==== | ||
:Value: Number | :Value: Number | ||
:Usage: <code>if (response.'''status''' == 200) { ''// | :Usage: <code>if (response.'''status''' == 200) { ''/* some code */'' }</code> | ||
[[#top|top]] | [[#Event_Handler_Callbacks|back]] | [[#top|top]] | [[#Event_Handler_Callbacks|back]] | ||
| Line 125: | Line 125: | ||
==== statusText ==== | ==== statusText ==== | ||
:Value: String | :Value: String | ||
:Usage: <code>if (response.'''statusText''' == "OK") { ''// | :Usage: <code>if (response.'''statusText''' == "OK") { ''/* some code */'' }</code> | ||
[[#top|top]] | [[#Event_Handler_Callbacks|back]] | [[#top|top]] | [[#Event_Handler_Callbacks|back]] | ||
| Line 131: | Line 131: | ||
==== readyState ==== | ==== readyState ==== | ||
:Value: Number | :Value: Number | ||
:Usage: <code>if (response.'''readyState''' == 4) { ''// | :Usage: <code>if (response.'''readyState''' == 4) { ''/* some code */'' }</code> | ||
[[#top|top]] | [[#Event_Handler_Callbacks|back]] | [[#top|top]] | [[#Event_Handler_Callbacks|back]] | ||
| Line 137: | Line 137: | ||
==== responseHeaders ==== | ==== responseHeaders ==== | ||
:Value: String | :Value: String | ||
:Usage: <code>if (response.'''responseHeaders''') { ''// | :Usage: <code>if (response.'''responseHeaders''') { ''/* some code */'' }</code> | ||
:* The <code>responseHeaders</code> is the string representation of response headers returned by <code>XMLHTTPRequest.getAllResponseHeaders()</code>. | :* The <code>responseHeaders</code> is the string representation of response headers returned by <code>XMLHTTPRequest.getAllResponseHeaders()</code>. | ||
Revision as of 23:15, 9 December 2007
Description
This API method provides access to the chrome-privileged XMLHttpRequest object. This means that it is possible to issue requests to domains other than that of the current page.
Additional reference may be found at:
Syntax
GM_xmlhttpRequest( details )
- Value: Function
- Returns: Nothing, details Object
- Compatibility: Greasemonkey 0.2.5+
details Object Properties Event Handler Callbacks methodonloadurlonreadystatechangeheadersonerroroverrideMimeTypedata
Properties
method
- Value: String
- Usage:
details.method = "GET"';
url
- Value: String
- Usage:
details.url = "http://www.greasespot.net/";
headers
- Value: Object
- Usage:
details.headers = {"User-Agent":"Mozilla/5.0"};
- The
headersproperty is an object which is typically used to override the default browser generated headers, also known as atoms. It should contain the atom-value pairs of the headers to send.[2]
- The
overrideMimeType
- Value: String
- Compatibility: Greasemonkey 0.6.8+
- Usage:
details.overrideMimeType = "text/html; charset=ISO-8859-1";
- While each character set name may have multiple aliases defined, there may be a preferred name which can be found at IANA
data
- Value: String
- Usage:
details.data = null; /* some code */ if (details.data) { /* some code */ }
Event Handler Callbacks
onload
- Usage:
details.onload = function (response) { /* some code */ }; - Returns: Nothing, response Object
onreadystatechange
- Usage:
details.onreadystatechange = function (response) { /* some code */ }; - Returns: Nothing, response Object
onerror
- Usage:
details.onerror = function (response) { /* some code */ }; - Returns: Nothing, response Object
response Object Properties Event Handler Callbacks responseTextstatusstatusTextreadyStateresponseHeaders
Properties
responseText
- Value: String
- Usage:
alert(response.responseText);
status
- Value: Number
- Usage:
if (response.status == 200) { /* some code */ }
statusText
- Value: String
- Usage:
if (response.statusText == "OK") { /* some code */ }
readyState
- Value: Number
- Usage:
if (response.readyState == 4) { /* some code */ }
responseHeaders
- Value: String
- Usage:
if (response.responseHeaders) { /* some code */ }
- The
responseHeadersis the string representation of response headers returned byXMLHTTPRequest.getAllResponseHeaders().
- The
Examples
GM_xmlhttpRequest({
method:"GET",
url:"http://www.greasespot.net/",
headers:{
"User-Agent":"Mozilla/5.0", // Recommend using navigator.userAgent when possible
"Accept":"text/xml"
},
onload:function(response) {
alert([
response.status,
response.statusText,
response.readyState,
response.responseHeaders,
response.responseText
].join("\n"));
}
});
Notes
[1]Some users have reported problems with international character sets. See these mailing list threads
- http://www.mozdev.org/pipermail/greasemonkey/2006-June/008785.html
- http://www.mozdev.org/pipermail/greasemonkey/2006-April/008064.html
[2]Some header atoms may not actually work through GM_xmlhttpRequest. The Referer atom is one that is known to be recognized but appears to be content filtered by the browser. This may be due to security restrictions to keep user scripts from doing unsafe things.
