View source for Shade region bounded by curves

Somewhere in the WWW the question was asked how to shade the region bounded by the following curves, where <math>x\ge 0</math>:

:<math>
\begin{eqnarray*}
x & \mapsto & \sqrt{x^2-1} \\
x & \mapsto & 0.707 x \\
x & \mapsto & 0 \\
\end{eqnarray*}
</math>

<jsxgraph width="600" height="400">
const board = JXG.JSXGraph.initBoard(BOARDID, { 
    boundingbox: [-1, 3, 3, -1], axis:true
});

// 1. step: compute intersection of 'sqrt(x^2-1)' and '0.707*x'
var diff = x => Math.sqrt(x * x - 1) -  0.707 * x;
var x_intersect = JXG.Math.Numerics.root(diff, 1.5);

// 2. step: plot curves only up to the mutual intersections
// We use JessieCode for the function terms
var curve1 = board.create('functiongraph', ['0', 0, 1]);
var curve2 = board.create('functiongraph', ['sqrt(x^2-1)', 1, x_intersect]);
var curve3 = board.create('functiongraph', ['0.707*x', 0, x_intersect]);

// 3. step: plot a filled curve which starts at (0,0), contains all points of 'sqrt(x^2-1)'
// and is closed by adding (0,0) at the end.
var curve = board.create('curve', [[], []], {strokeWidth:3, fillColor:'yellow', fillOpacity: 0.3});
curve.updateDataArray = function() {
  // Start with (0, 0)
	this.dataX = [0];
  this.dataY = [0];
  
   // Copy all points from curve2
  this.dataX = this.dataX.concat( curve2.points.map( p => p.usrCoords[1] ) );
  this.dataY = this.dataY.concat( curve2.points.map( p => p.usrCoords[2] ) );
  
  // Close the curve by adding (0,0)
  this.dataX.push(0);
  this.dataY.push(0);
};
board.update();
</jsxgraph>