ie 10 localStorage.getItem returns error: more data is available

Question

I'm using the localStorage in my web application to save al kinds of data. However this does not seem to work with internet explorer 10.

When i try to test this with:

localStorage.testItem = "testing"

it works fine, however when I try

localStorage.setItem('testItem', 'testing');

I get an error: More data available. What is going on here?

Answer 1

I don't have a solid answer for this, but I've been debugging this error on a remote user's box for about a month. I haven't had direct access to the box, but what I do know is:

1. in my particular case, any reference to localStorage caused the "SCRIPT234: More data is available" exception. This is slightly different than the OP's problem
2. Error 234: More data is available is a low-level Windows system error
3. It doesn't matter whether "Enable DOM Storage" is checked inside "Tools / Internet options / Advanced / Security / Enable DOM Storage", the error happens both ways
4. It happened in a very recent build of IE 11: IE 11.0.9600.17501
5. There is no record of this error ever happening inside IE except for this SO question. It's typically a system-level error. The fact that it's bubbled up into the JS console is troubling. Usually when an OS reveals its guts to a webpage, the page can reach in and steal some organs.

Ultimately, the error stopped appearing, but the actual fix is unknown to me. The user did clear the browser cache (maybe it was corrupted?) just before it was resolved, but it could also have been a Windows update that resolved the problem, or some other unknown change. At this point, I have no idea how to reproduce it, but hopefully some of the info above will help the next person who runs into it.