not saving after refresh

[zzm88]

text could not be saved after refresh, only #msg shows success texts.

[geniuscarrier]

@zzm88 what browser are you using? check your local storage.

[zzm88]

@geniuscarrier I am using chrome and I can see the text I typed was saved in the local storage. But it won't be loaded and shown in the textarea after I refresh. It just like that it could auto-save but could not auto-load.
Chrome console :

>window.localStorage
Storage {autoSave: "aadsfsdaf", autosaveFormCookie-reply-form: "csrfmiddlewaretoken:::--FIELDANDVARSPLITTER--:::c0…:asdffasdasdfasdfasd:::--FORMSPLITTERFORVARS--:::", length: 2}
autoSave:"aadsfsdaf"
autosaveFormCookie-reply-form:"csrfmiddlewaretoken:::--FIELDANDVARSPLITTER--:::c0tgfKoPkJ33riPO56z2KyosIfLKOq7W:::--FORMSPLITTERFORVARS--:::content:::--FIELDANDVARSPLITTER--:::asdffasdasdfasdfasd:::--FORMSPLITTERFORVARS--:::"
length:2