nimforum doesn't redirect on new thread or reply on vivaldi

[xmonader]

Versions

• Ubuntu 18.04
• Vivaldi | 2.5.1525.48 (Stable channel) (64-bit)
• Revision | 29398d382527041597792325909ec48e07e1f5a6
• JavaScript | V8 7.4.288.28

Scenario

Create a new thread or reply to user

Expected

redirect to the newly created object

What happened

forum.js?t=2018-07-2114%3A36%3A22:3227 Uncaught Error: Error: unhandled exception: same(kxi.currentTree, getElementById(document, kxi.rootId), 0)  [AssertionError]

    at unhandledException (forum.js?t=2018-07-2114%3A36%3A22:3227)
    at raiseException (forum.js?t=2018-07-2114%3A36%3A22:1544)
    at sys_fatal_17822 (forum.js?t=2018-07-2114%3A36%3A22:3241)
    at raise_assert_17817 (forum.js?t=2018-07-2114%3A36%3A22:3247)
    at dodraw_204447 (forum.js?t=2018-07-2114%3A36%3A22:3930)
    at HEX3Aanonymous_205401 (forum.js?t=2018-07-2114%3A36%3A22:3961)

[dom96]

Can you try other browsers? Is it just vivaldi?

[xmonader]

I tried with chromium-browser and it worked fine with no errors.

[mp035]

I have this error on Chrome Version 78.0.3904.108 (Official Build) (64-bit) running on Manjaro Linux. It is quite frustrating. ~~IIRC Firefox does the same thing.~~ Edit: Firefox is fine.