Uploader的pause()和abort()方法无效？

在Android上反复测试，确认使用 plus.uploader.createUpload() 方法创建的 task，使用 start() 开始后，无法用pause()或abort()停止上传。奇怪的是，不仅调用这两个方法无效，即便整个包含uploader实例的WV被close掉，上传仍会继续，继续调用onstatuschange和oncomplete...

求官方查证。

以下是我的debug log:

> [wv_newitem_content.html][icang.ui.photopicker.js] Choose image from GALLERY... at js/icang.js:30
[wv_newitem_content.html][icang.ui.photopicker.js] Chose image: file:///storage/extSdCard/tencent/MicroMsg/WeiXin/mmexport1429584231520.jpg at js/icang.js:30
[wv_newitem_content.html][identify/newitem.c.js] Adding new image upload task: kSnselkLkb at js/icang.js:30
[Class.Uploader] Initializing uploader to url = http://192.168.0.251/icang/server/identify.php at js/icang.class.js:14
[Class.Uploader] Added file: itemimage = file:///storage/extSdCard/tencent/MicroMsg/WeiXin/mmexport1429584231520.jpg at js/icang.class.js:14
[Class.Uploader] Start uploading file... at js/icang.class.js:14
[HBuilder][icang.geo.js] Geolocation updating... at js/icang.js:30
[wv_newitem.html][icang.wvmanager.js] Closing page: wv_newitem.html at js/icang.js:30
[wv_newitem_content.html][identify/newitem.c.js] Canceling 2 upload tasks... at js/icang.js:30
[Class.Uploader] Upload canceled! at js/icang.class.js:14
[Class.Uploader] Upload canceled! at js/icang.class.js:14
[HBuilder][icang.geo.js] Geolocation error: No location providers available. at js/icang.js:30
[Class.Uploader] Upload success: http://192.168.0.251/icang/server/identify.php at js/icang.class.js:14
Uncaught TypeError: Cannot read property 'extras' of null
[Class.Uploader] Upload success: http://192.168.0.251/icang/server/identify.php at js/icang.class.js:14
Uncaught TypeError: Cannot read property 'extras' of null
[HBuilder][icang.geo.js] Geolocation updating... at js/icang.js:30