graph title not included in xml

[paultpearson]

In the example below, when I view the source of the html output file, the speech and speech 2 annotations in xml for the title have an empty value such as "Title: " instead of "Title: Super Bowl National Anthem Length". The value of the plot title is getting lost somewhere. Could you please look into this? Thanks!

library(ggplot2)
library(BrailleR)
library(gridSVG)

superbowl <- data.frame(
year = seq(from = 1980, to = 2024, by = 1),
song_length <- c(78, 82, 98, 93, 94, 81, 82, 64, 94, 86, 85, 116, 126, 105, 153, 100, 95, 113, 87, 115, 120, 109, 116, 153, 129, 113, 129, 90, 114, 130, 107, 113, 94, 156, 123, 124, 142, 124, 112, 121, 109, 136, 115, 121, 95)
)

basicPlot <- ggplot(superbowl, aes(year, song_length)) +
geom_point() + geom_line() +
ggtitle("Super Bowl National Anthem Length") +
xlab("Year") + ylab("Song length (seconds)")

MakeAccessibleSVG.ggplot(basicPlot)