SparkR Web UI Incomplete loading

Hi,everyone,
Recently, I have encountered some troublesome issues while using Rstudio Server with Soarklyr.
I use Centos8 deploy Rstudio server and R.All versions are the latest.
When I use the following code.
library(sparklyr)
sc <- spark_connect(master = "local",version = "3.4.3")
spark_web(sc)
Then I have obtained the following web pages


The web ui can't use normal.
Does anyone else have a solution? Thank you