javascript - Unwanted border around canvas -


im writing text on canvas , drawing line. somehow, end unwanted border around canvas:

enter image description here

first write text in top right corner , call context.save(), draw line , call context.stroke().

code:

$(document).ready(function() {     var canvas = document.getelementbyid('canvas');     var context = canvas.getcontext('2d');      context.beginpath();     context.rect(0, 0, canvas.width, canvas.height);     context.fillstyle = 'black';     context.fill();      paintname(context, canvas);     drawline(context); });    function paintname(context, canvas) {      context.textalign = "left";     context.font = "16pt arial";     context.fillstyle = 'red';     context.filltext('g5', context.canvas.width - 35, 18);     context.strokestyle = 'red';    context.save(); }  function drawline(context){     var gatingcoords = [[30, 120], [50, 300]];     var nextx, nexty, pointx, pointy;      context.linewidth = 4;      (var = 0; < gatingcoords.length; i++) {          pointx = gatingcoords[i][0];         pointy = gatingcoords[i][1];           if (i === gatingcoords.length - 1) {             nextx = gatingcoords[0][0];             nexty = gatingcoords[0][1];         } else {             nextx = gatingcoords[i + 1][0];             nextxy = gatingcoords[i + 1][1];         }          context.moveto(pointx, pointy);         context.lineto(nextx, nexty);     }      context.stroke(); }

and fiddle here. how happening?

the border comes context.rect(0, 0, canvas.width, canvas.height). if add context.beginpath() right before paintname(context, canvas), border goes away.


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