Description of a bug in the local storage of userdata by IE

For more information about userdata, click here.

Again, the project uses ie's userdata. When the user does not use the flash plug-in to store some chat records

Trigger bug? Condition:

1. Use userdata to store two properties xxx in the same xml file. setAttribute ('A', '123'); xxx. setAttribute ('B', '123'); xxx. save ('xmlname ');

In this case, <ROOTSTUB a = "111" B = "222"/>

2. Press ctrl + F5 to refresh the page and delete the known attribute 'a' through xxx. removeAttribute ('A'). Expected results: <ROOTSTUB B = "222"/>

Actual results: <ROOTSTUB/>

Bug? : Another attribute is deleted when a property is deleted.



I guess that userdata may be associated with ie's own cache to some extent during operations. Why is the cache lost after a strong click?



Solution:

When deleting a property, use xxx first. load ('xmlname'); var val = xxx. getAttribute ('B'); load the other property and save it in a variable. After removeAttribute is successful, set setAttribute ('B', val) of attribute B to return.

Thank you for your help.


Ps: how nice it is to use Storage?