Backport #20244 * https://github.com/go-gitea/gitea/issues/20240 At the moment, Firefox (iOS) (10x) has an engine bug. See https://github.com/go-gitea/gitea/issues/20240 If a script inserts a newly created (and content changed) element into DOM, there will be a nonsense error event reporting: Script error: line 0, col 0. This PR ignores such nonsense error event. Fix #20240
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