Browser 7.3 XMLHttpRequest Issue (Known Issue) - Revision history

Lpvalente: Lpvalente -

2012-06-16T13:04:21Z

Lpvalente -

Hamishwillee: Hamishwillee - Remove old KB template

2012-06-15T05:12:26Z

Hamishwillee - Remove old KB template

Hamishwillee: moved KIC001676 - Browser 7.3 XMLHttpRequest Issue to Browser 7.3 XMLHttpRequest Issue (Known Issue): Merge into wiki.

2012-03-30T04:33:49Z

moved KIC001676 - Browser 7.3 XMLHttpRequest Issue to Browser 7.3 XMLHttpRequest Issue (Known Issue): Merge into wiki.

Hamishwillee: Removed protection from "KIC001676 - Browser 7.3 XMLHttpRequest Issue": Merging into Wiki

2012-03-30T04:24:53Z

Removed protection from "KIC001676 - Browser 7.3 XMLHttpRequest Issue": Merging into Wiki

Hamishwillee: Hamishwillee - Bot update

2012-03-30T04:24:48Z

Hamishwillee - Bot update

Forum Nokia KB: Protected "KIC001676 - Browser 7.3 XMLHttpRequest Issue" ([edit=sysop] (indefinite) [move=sysop] (indefinite))

2011-08-23T12:10:26Z

Protected "KIC001676 - Browser 7.3 XMLHttpRequest Issue" ([edit=sysop] (indefinite) [move=sysop] (indefinite))

Forum Nokia KB: Forum Nokia KB -

2011-08-23T12:09:53Z

Forum Nokia KB -

New page

__NOTOC__
__NOEDITSECTION__
{{KBKI}}
{{KnowledgeBase
|id=KIC001676
|platform= Symbian^3, Symbian S60 5th Edition, Symbian S60 3rd Edition FP2
|devices= All devices with Browser 7.3
|category= WRT
|subcategory=
|creationdate= August 23, 2011
|keywords=
}}
== Description ==
When a Symbian Web Runtime widget, started from the Applications menu, is trying to access the internet for the first time, an 'Allow connection to Network?' prompt is shown. In previous browser versions, answering 'No' fires an onoffline event and XMLHttpRequest completes with status code 0. In Browser 7.3, denying network access fires an onoffline event, but XMLHttpRequest does not complete.
== Solution ==
The solution is to implement a timer that aborts the XMLHttprequest if it is taking too long to complete. This will ensure that the request won’t be left hanging forever. Also, please note that usage of online/offline API is recommended in all WRT widgets.
<code javascript>
var timeOutDelay = 10000; // 10 sec
var timerId;

var xmlHttpRequest = new XMLHttpRequest();
xmlHttpRequest.open("GET", "http://www.nokia.com", true);

xmlHttpRequest.onreadystatechange = function(){
if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200) {
clearTimeout(timerId);
alert(xmlHttpRequest.responseText);
}
}
xmlHttpRequest.send(null);
timerId = setTimeout(xmlHttpRequestOnTimeOut, timeOutDelay);

function xmlHttpRequestOnTimeOut(){
xmlHttpRequest.abort();
alert("XMLHttpRequest timed out");
}
</code>
[[Category:Known Issue]]
[[Category:Browser]]
[[Category:Symbian Web Runtime]]

@@ Line 1: / Line 1: @@
 {{ArticleMetaData <!-- v1.2 -->
 |sourcecode= <!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] -->
 |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
-|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
+|devices= All devices with Browser 7.3
 |sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Qt SDK 1.1.4]) -->
-|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
+|platform= Symbian^3, Symbian S60 5th Edition, Symbian S60 3rd Edition FP2
 |devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 |dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
@@ Line 20: / Line 21: @@
 |creationdate= 20110823
 |author= [[User:Nokia Developer KB]]
 |id=KIC001676
 }}
 == Description ==
 When a Symbian Web Runtime widget, started from the Applications menu, is trying to access the internet for the first time, an 'Allow connection to Network?' prompt is shown.  In previous browser versions, answering 'No' fires an onoffline event and XMLHttpRequest completes with status code 0. In Browser 7.3, denying network access fires an onoffline event, but XMLHttpRequest does not complete.
@@ Line 55: / Line 49: @@
+}
 </code>

@@ Line 25: / Line 25: @@
 == Description ==
-When a Symbian Web Runtime widget, started from the Applications menu, is trying to access the internet for the first time, an 'Allow connection to Network?' prompt is shown.  In previous browser versions, answering 'No' fires an onoffline event and XMLHttpRequest completes with status code 0. In Browser 7.3, denying network access fires an onoffline event, but XMLHttpRequest does not complete.
+{{Abstract|When a Symbian Web Runtime widget, started from the Applications menu, is trying to access the internet for the first time, an 'Allow connection to Network?' prompt is shown.  In previous browser versions, answering 'No' fires an onoffline event and XMLHttpRequest completes with status code 0. In Browser 7.3, denying network access fires an onoffline event, but XMLHttpRequest does not complete. }}
 == Solution ==
 The solution is to implement a timer that aborts the XMLHttprequest if it is taking too long to complete. This will ensure that the request won’t be left hanging forever. Also, please note that usage of online/offline API is recommended in all WRT widgets.