У вашего броузера проблема в совместимости с HTML5
IntelliJ IDEA 2018.3 delivers an updated and streamlined Structural Search & Replace dialog. Now autocompletion works in the predefined templates in the search field. You can view the search history in the drop-down menu under the search icon. Scope configuration is now easier and more flexible, too. You can edit variables/filters right from the Structural Search & Replace dialogs. Finally, the complicated Edit Variables form has been replaced with a filters panel, which you will find in the updated dialog.
*Author: Trisha Gee
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