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EventSource.constructor

The EventSource() constructor returns a newly-created EventSource, which represents a remote resource.

Syntax

pc = new EventSource(url, configuration);

Parameters

url
A USVString that represents the location of the remote resource
configuration Optional
Provides options to configure the new connection. The possible entries are:
  • withCredentials, defaulting to false, indicating if CORS should be set to include credentials.

Return value

A newly-created EventSource object, configured as described by configuration, if specified; otherwise, configured to appropriate basic defaults.

Specifications

Specification Status Comment
WHATWG HTML Living Standard
The definition of 'EventSource()' in that specification.
Living Standard Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9 6.0 (6.0) ? 11 5
CORS support (withCredentials) 26 11.0 (11.0) ? 12 ?
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 4.4 6.0 (6.0) ? ? ?
CORS support (withCredentials) ? 11.0 (11.0) ? ? ?

See also

© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/EventSource/EventSource