javascript - 不正确的闪存包

Question

我有一个 SCORM 包，由几个 swf 和播放器组成。然而，当用户从 LMS 启动内容时，播放器初始化不正确或损坏，当然它无法按预期工作和运行。有一个包的控制台日志可以提供一个想法。

Synchronous XMLHttpRequest on the main thread is deprecated because of its   detrimental effects to the end user's experience. For more help, check     

http://xhr.spec.whatwg.org/.
Initializing SCORM class...ExternalInterface.available evaluates true.     
SCORM.isAvailable() evaluates true. SCORM class file check, ready.
SCORM.connect() called from class file
connection.initialize called.
SCORM.API.find: API found. Version: 2004
API: [object Object]
SCORM.data.get(cmi.completion_status)  value: unknown
__connectionActive: true
SCORM.data.get(cmi.location) failed. 
Error code: 403
Error info: hata
SCORM.data.get(cmi.location)  value: 
SCORM.get(cmi.location) failed. 
Error code: 403
Error info: hata
public function get returned: 
SCORM.data.get(cmi.entry)  value: ab-initio
public function get returned: ab-initio
SCORM.data.get(cmi.location) failed. 
Error code: 403
Error info: hata
SCORM.data.get(cmi.location)  value: 
SCORM.get(cmi.location) failed. 
Error code: 403
Error info: hata
public function get returned: 
SCORM.data.get(cmi.learner_name)  value: test test
public function get returned: test test

Answer 1

日志表明类(class)正确启动。 “错误”实际上是正确的行为:如果类(class)是 ab-initio(首次启动)，则请求书签 (cmi.location) 将导致错误。没有书签，因为尚未创建。

如果您希望类(class)有书签——即您正在重新启动类(class)，但它的行为仍然像是从头开始——我猜您没有正确使用Commit(将数据发布到 LMS 后，和/或不发出 Terminate (scorm.quit)在关闭类(class)之前。

根据下面的评论进行更新

如果您的类(class)检查 cmi.entry 并看到 ab-initio，则无需查找书签。您应该使用条件语句来防止错误并减少 LMS 和类(class)之间的干扰:

var bookmark = "my default";
var entry = scorm.get("cmi.entry");
var location; //wait for it...

if(entry !== "ab-initio"){

    //not querying cmi.location unless we're sure this isn't the first visit
    location = scorm.get("cmi.location");

    //Wrapping in a conditional in case cmi.location returns false or an empty string
    if(location){ bookmark = location; }

}

courseFunctionThatUsesBookmarkValue(bookmark);