IE11 SCRIPT5007: Unable to get property 'call' of undefined or null reference - Githubissues

Financial-Times / ftdomdelegate

Create and manage a DOM event delegator

MIT License

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IE11 SCRIPT5007: Unable to get property 'call' of undefined or null reference #139

Open Sreilys opened 3 years ago

Sreilys commented 3 years ago

Bug report

What

On IE11 every time I click anywhere on the page I get SCRIPT5007: Unable to get property 'call' of undefined or null reference

Details

how to reproduce it: click anywhere on the page
describe the environment you are having this problem in
- Browser: IE11 (11.329.19041.0)
- Device: Desktop
- provide screenshots to illustrate your problem:

Additional information

This happens here:

line 363:

else if (listener.matcher.call(target, listener.matcherParam, target)) {
          toFire.push([event, target, listener]);
 }

Docs from Microsoft: https://docs.microsoft.com/en-us/scripting/javascript/misc/object-expected