The session links for the Gridmancer level don’t appear to be functioning correctly. It is just loading the default code whenever I try to open a link such as:

Ah, I see the problem. Tracking the bug over here: https://github.com/codecombat/codecombat/issues/1169

Here’s Mark’s code:

```
var grid = this.getNavGrid().grid;
var tileSize = 4;
var occ = function(x, y) { return grid[y][x].length > 0; };
var occCol = function(x, y1, y2) {
for (var j = y1; j < y2; j++)
if (occ(x, j))
return true;
return false;
};
var addRectAndMark = function(x1, y1, x2, y2) {
// the args list for addRect is not to my liking
this.addRect(x1 + (x2-x1)/2, y1 + (y2-y1)/2, x2-x1, y2-y1);
// alas, adding a rect doesn't mark the grid filled
for (var x = x1; x < x2; x += tileSize)
for (var y = y1; y < y2; y += tileSize)
grid[y][x] = 'x'; // FIXME structure unknown
};
for (var x = 0; x + tileSize < grid[0].length; x += tileSize) {
for (var y = 0; y + tileSize < 93; y += tileSize) {
var y2 = y; // note our current y
while (!occ(x, y2)) { // sweep thru y to expand 1xN rect
y2 += tileSize;
}
if (y2 > y) { // if we got a hit, now sweep X with that swath
var x2 = x + tileSize;
while (!occCol(x2, y, y2)) {
x2 += tileSize;
}
// whatever size we ended up with,
// make the rect, mark those squares used
addRectAndMark.call(this, x, y, x2, y2);
y = y2;
this.wait();
}
}
}
```