Security sandbox violation: BitmapData.drawWithQuality cannot access null. No policy files granted access.

[hahmann1979]

Problem Description

Getting SecurityError: Error #2123: Security sandbox violation: BitmapData.drawWithQuality: app:/Orana%202.2.3.4_document_default.swf cannot access null. No policy files granted access.
	at flash.display::BitmapData/drawWithQuality()
	at Orana2_2_3_4_document_default_fla::MainTimeline/indicator_click()[Orana2_2_3_4_document_default_fla.MainTimeline::frame1:8079]

• Which AIR SDK did you use? using SDK 51.2.1.7
• Using windows 11
• it will work the first couple of times when clicking to create a bitmap of a movieclip on stage, but at somw point it will give the error on drawWithQuality

Steps to Reproduce

theMovieClip = new MovieClip();
theMovieClip = position_holder;
var bitmap:Bitmap;
var bounds : Rectangle
var m:Matrix;
bounds = new Rectangle();
bounds = theMovieClip.getBounds(theMovieClip);	
bitmap = new Bitmap(new BitmapData(theMovieClip.width * MovieClip(root).widthScale,theMovieClip.height * MovieClip(root).heightScaleOffset, true, 0x0));
m = new Matrix(1, 0, 0, 1, -bounds.x, -bounds.y);
m.scale( MovieClip(root).widthScale,  MovieClip(root).heightScaleOffset)
bitmap.smoothing =true;

// error on this line
bitmap.bitmapData.drawWithQuality(theMovieClip, m, null, null,  null,  false,StageQuality.BEST);

	
bitmap.width = bitmap.width / MovieClip(root).widthScale;	
bitmap.height = bitmap.height / MovieClip(root).heightScaleOffset;			
imageX = new Bitmap();
imageX = bitmap;
imageX.smoothing =true;
imageX.y = position_holder.y - 30 ;
imageX.x = position_holder.x ;
imageX.alpha = 0.4;
addChild(imageX)

Known Workarounds

none....

[marchbold]

What is position_holder?

[hahmann1979]

ah yes position_holder is the movieclip for the bitmap draw. The MovieClip is just a tmp mc used to assign this...

[FliplineStudios]

Any chance that position_holder is loaded from outside the app itself, or content loaded from outside the app is placed inside of it? That's the main reason why a SecurityError would be thrown for BitmapData.draw or drawWithQuality, if the content isn't from the same security sandbox. And if the content in position_holder is being loaded from outside the app (for example using a Loader object), are you setting ApplicationDomain.currentDomain in its LoaderContext when you load it?

[hahmann1979]

I think I have found the issue: in the position holder there is also a StageWebView with an Instagram feed. I remove this before creating the image because I know this will result in an error. Probably this isn't done fast enough, so it still results in a sandbox error...

[marchbold]

Yeah that sounds like the issue.