Unable to get property 'split' of undefined or null reference

[ertrzyiks]

Hi, our error monitoring tool captured the error like in the title by https://cdn.segment.com/analytics.js/v1/KEY/analytics.min.js

Details

Unable to get property 'split' of undefined or null reference

After checking out the stack trace I mapped it to that exact fragment:

localstorage-retry/lib/index.js

Lines 280 to 282 in ddb0cc2

	for (var i = 0; i < storage.length; i++) {
	var k = storage.key(i);
	var parts = k.split('.');

Looks like some storage reports length > 0, but .key(0) returns null or undefined.

Occurences

We had around 10 reports during last 2 months, so the issue is marginal

User information:

• Edge Version:18.18362
• Windows 10

Actions

The easiest solution would be to add a guard to prevent splitting non-string values, but it would not address the underlying error that the storage implementation may be glitched.

Please let me know if I can help to fix it.