'xtermjs fit addon causes line to overwrite previous line

The fit addon causes a line in xtermjs to overwrite previous lines. Specifically, when the user types, half a line is filled up, and then the characters begin appearing from the left hand side of the line and overwriting the previous characters written there.

const fitAddon = new FitAddon.FitAddon()
term.loadAddon(fitAddon)
fitAddon.fit()
xtermjs


Solution 1:[1]

This happens when the columns of xterm and columns of your serverside PTY are not equivalent. You can change the xterm columns and rows like this.

const term = new Terminal({
  rows: x,
  cols: y,
});

Where x and y are your PTY rows and columns.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Syscall

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