不当闪光灯包

Question

我有一个由主权财富基金和玩家夫妇组成的SCORM软件包。然而，当用户从LMS启动内容时，播放机被不正确地初始化或损坏，当然，它不像它应该的那样工作和功能。有一个软件包的控制台日志，可以给出一个想法。

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

日志指示课程正确启动。“错误”实际上是正确的行为:请求书签(cmi.location)将导致错误，如果课程是ab-initio (第一次发射)。没有书签，因为它还没有创建。

如果您期望课程有一个书签--也就是说，您正在重新启动课程，而它的行为仍然好像它是从头开始的--我猜您在将数据发布到LMS之后没有正确地使用Commit (此包装器中的scorm.save())，并且/或在结束课程之前没有发出Terminate (在这个包装器中的scorm.quit)。

根据下面的评论更新

如果您的课程检查cmi.entry并看到ab-initio，则无需查找书签。您应该使用一个条件语句来防止错误并减少LMS与course之间的聊天：

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);