Connection Manager Release Notes
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*** version 2.2.0 ***
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* initHeader() now accepts a third argument as a boolean. When set to true,
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this specific header will automatically be sent with each transaction.
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Otherwise, the header will be set and sent for the specific transaction only.
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Example: initHeader('X-YUI-State','Beta', true); all transactions will send this
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header.
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* resetDefaultHeaders() will clear the default headers collection.
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* All Connection Mananger transactions will broadcast the header: "X-Requested-
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With: XMLHttpRequest".
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* This can be turned off: YAHOO.util.Connect.setDefaultXhrHeader(false);
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* The HTTP method argument in asyncRequest is now case-insensitive.
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* uploadFile() will now correctly handle the absence of a callback object,
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allowing the transaction to complete silently.
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*** version 0.12.2 ***
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* The Opera/Connection Manager concurrent object condition, described in version
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0.12.0, no longer tests applies for Opera, version 9.10.
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*** version 0.12.1 ***
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* connection-debug.js corrected and synchronized with connection.js. Code
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inconsistencies between the two files existed in 0.12.0.
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*** version 0.12.0 ***
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* When uploading files via setForm() and asyncRequest includes a POST data
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argument, appendPostData() will create hidden input fields for each postData
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label/value and append each field to the form object.
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* setForm() returns the assembled label/value string of the parsed HTML form
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fields.
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* NOTE: Opera 9.02 does not allow for more than 12 concurrent Connection Manager
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objects.
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The following example creates 12 requests in a loop:
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for(var n=0; n<=12; i++){
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conn[n] = YAHOO.util.Connect.asyncRequest('GET', sUrl, callback);
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}
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If n > 13, Opera 9.02 will crash. Connection manager objects count n must be <=
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12 at all times. This condition was not present in Opera version 9.01.
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This condition does not apply to other A-Grade browsers (
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http://developer.yahoo.com/yui/articles/gbs/gbs_browser-chart.html)
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*** version 0.11.3 ***
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* YUI Event dependency for file uploading is now optional.
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* uploadFile() now sets unique IDs for each file upload transaction to prevent
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iframe collisions with parallel uploads.
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* The callback object now has property responseXML to provide support for file
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upload transactions that return an XML document.
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* setForm() will verify if a select option value attribute is present and use
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its value, including empty string, before using the text node value.
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* Modified polling mechanism in handleReadyState() and
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handleTransactionResponse() to prevent infinite polling if JavaScript errors
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occur in the user-defined callback.
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* createFrame() will now accept a boolean argument of true to set the frame
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source to "javascript:false" to prevent IE from throwing security warnings in an
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HTTPS environment.
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* setHeader() now enumerates through the _http_header object using
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hasOwnProperty() to prevent collisions with members added to Object via
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prototype.
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* If using setForm() and asyncRequest includes a POST data argument, the data
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will be concatenated to the HTML form POST message.
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*** version 0.11.2 ***
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* No revisions.
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*** version 0.11.1 ***
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* uploadFile() now verifies the existence of callback.upload before invoking
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callback, with or without object scope.
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*** version 0.11.0 ***
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* Each transaction can be defined with a timeout threshold, in milliseconds,
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through the callback object. If the threshold is reached, and the transaction
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hasn't yet completed, the transaction will call abort().
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* abort() will now accept a callback object as the second argument. The
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failure callback will receive a response object to indicate the transaction was
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aborted.
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* setForm() will now support file uploads by setting the second argument to
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true (e.g., YAHOO.util.Connect.setForm(formObject, true). File upload does not
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use the callback success or failure handler. Instead, it uses a new callback
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object handler: upload.
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* HTML form submit will no longer submit form fields without a defined name
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attribute.
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* The default POST header of 'Content-Type','application/x-www-form-urlencoded'
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can be overridden by calling setDefaultPostHeader(false). This
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will remove the default header from non-HTML form, POST submissions.
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* setHeader() now enumerates through the _http_header object with
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propertyIsEnumerable to prevent collisions with members added to Object via
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prototype.
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*** version 0.10.0 ***
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* handleTransactionResponse() now treats the full HTTP 2xx range as a success
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case, instead of just HTTP 200.
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* To accommodate multiple field values in Mozilla/Firefox, multiple initHeader
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calls with the same label will now result in the values concatenated to a
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comma- delimited string value.
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Example:
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Setting Content-Type:'application/x-www-form-urlencoded' and Content-
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Type:'text/xml' will result in Content-Type:'application/x-www-form-urlencoded,
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text/xml'.
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* Default polling interval lowered to 50ms.
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* YAHOO.util.Connect.setPollingInterval() will allow you to set a polling
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interval -- in milliseconds -- to override the default value.
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* YAHOO.util.Connect.getResponseHeader[headerLabel] now supported as a response
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object property to provide symmetry with the native XHR object's property.
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Example:
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YAHOO.util.Connect.getResponseHeader['Content-Length'] will return the value
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for the Content-Length header, if the header is available.
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* YAHOO.util.Connect.allResponseHeaders property renamed to
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getAllResponseHeaders to provide symmetry with the native XHR object's
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property.
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* YAHOO.util.Connect.setForm() now supports HTTP GET as well as HTTP POST.
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* YAHOO.util.Connect.setForm() now accepts an HTML form object as well as its
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name attribute value.
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* YAHOO.util.Connect.setForm() will not submit HTML form fields that are
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disabled or do not have a name attribute value.
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* [FIXED] Response exceptions result in infinite callback loop in
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Mozilla/Firefox.
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* [FIXED] YAHOO.util.Connect.abort() now properly clears polling interval.
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* [FIXED] isCallInProgress() now verifies whether XHR instance still exists,
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and returns false if the connection object is no longer available.
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*** version 0.9.0 ***
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* Initial release
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