Some Help links in IntelliJ end up on a 404 error page
已回答
For example this one from the Run/Debug Configurations dialogue: https://www.jetbrains.com/help/idea/2017.2/?reference.dialogs.rundebug.JUnit&utm_source=from_product&utm_medium=help_link&utm_campaign=IU&utm_content=2017.2
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Known issue, will be fixed in the next update.