[Bug] Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'.

See original GitHub issue

Hello everyone! I am using the library and it is perfect. Everything was working fine until I started seeing these errors in console:

simplebar.min.js:formatted:1911 Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'.
    at MutationObserver.e.recalculate (simplebar.min.js:formatted:1911)
    at d (simplebar.min.js:formatted:1512)
    at p (simplebar.min.js:formatted:1517)
    at MutationObserver.m (simplebar.min.js:formatted:1545)

When expanded it can be seen that it happens from calling the jquery .append() to scroll container. Basically what I have on the page is a container with a bunch of inputs. When the user types the input expands to fit the text until 140px by using hidden span element. I guess that means that every time the user enters a character the scrollbar is trying to recalculate and this problem occurs.

Hoping to solve the problem. Thank you.

Update

I looked through debugger and it seems that the problem occurs because the mutation observer’s property .el is undefined.

Issue Analytics

State:
Created 3 years ago
Comments:8 (1 by maintainers)

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5reactions

d4n1elchencommented, Aug 24, 2020

Solved by specifying version in cdn url. (if you use cdn to load the module)

<script src="https://unpkg.com/simplebar@5.2.1/dist/simplebar.min.js"></script>

I think they accidentally point the lastest version to beta release.

1reaction

Grsmtocommented, Aug 30, 2020

Released a fix in the latest beta releases.

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