Characters are removed from the end of lines when cols is reduced

[Nathan219]

Whenever the term.resize() is called with a number lower than the length of any line, the characters at the end are just popped off, and cannot be recovered.

Here's the offending line in term.js
// resize cols
j = this.cols;
if (j < x) {
ch = [this.defAttr, ' ']; // does xterm use the default attr?
i = this.lines.length;
while (i--) {
while (this.lines[i].length < x) {
this.lines[i].push(ch);
}
}
} else if (j > x) {
i = this.lines.length;
while (i--) {
while (this.lines[i].length > x) {
this.lines[i].pop();
}
}
}

That last line is just popping off the data! Unless I'm resizing it wrong, how am I supposed to prevent this? My current workaround is to not reduce the col number past 80.

[luisbravoa]

I am getting the same issue, any news on this?

Thanks!

[amshali]

I am pretty sure the issue is something else. How are you doing the resize? Just on the client side with term.resize()? If so that is definitely the issue. You also need to resize on the server side, otherwise your pty won't be in sync with your web term instance. Try this:
Client side:

socket.emit('resize', newSize);
term.resize(newSize.cols, newSize.rows);

On the server side:

socket.on('resize', function(options) {
term.resize(options.cols, options.rows);
});