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The XMLHttpRequest.responseType
property is an enumerated value that returns the type of the response. It also lets the author change the response type to one "arraybuffer", "blob", "document", "json", or "text". If an empty string is set as the value of responseType, it is assumed as type "text".
Setting the value of responseType to "document" is ignored if done in a Worker environment. When setting responseType
to a particular value, the author should make sure that the server is actually sending a response compatible to that format. If the server returns data that is not compatible to the responseType
that was set, the value of response
will be null
. Also, setting responseType
for synchronous requests will throw an InvalidAccessError
exception.
The values supported by responseType are the following:
Value | Data type of response property |
"" |
DOMString (this is the default value) |
"arraybuffer" |
ArrayBuffer |
"blob" |
Blob |
"document" |
Document |
"json" |
JavaScript object, parsed from a JSON string returned by the server |
"text" |
DOMString |
"moz-blob" |
Used by Firefox to allow retrieving partial Blob data from progress events. This lets your progress event handler start processing data while it's still being received. |
"moz-chunked-text" |
Similar to When This mode currently only works in Firefox. |
"moz-chunked-arraybuffer" |
Similar to When This mode currently only works in Firefox. |
"ms-stream" | Indicates that the response is part of a streaming download. It is supported only for download requests. This mode is available only in Internet Explorer. |
Specifications
Specification | Status | Comment |
---|---|---|
XMLHttpRequest | Living Standard | WHATWG living standard |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | ? | ? | ? | ? | ? |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | ? | ? | ? | ? | ? | ? |