javascript - Getting image from webapi causes memory leak -

i have aurelia client gets image asp.net server via api. image served server holds emgu cv umat var. following method in controller image , displayed correctly.

this method results in memory leakage , can't seem orgin (not calling method, means no leak):

update, tried mawg's suggestion when close stream not show image. leak gone there no image.

[system.web.http.httpget] [system.web.http.route("dummymethod3")] public httpresponsemessage get2() {     httpresponsemessage response = new httpresponsemessage();     try     {         console.writeline("get image 3");         ddengine.sem.waitone();          var memorystream = new memorystream();         resultimage.bitmap.save(memorystream, imageformat.png);         memorystream.position = 0;          var result = new httpresponsemessage(httpstatuscode.ok);         result.content = new streamcontent(memorystream);         result.content.headers.contenttype = new mediatypeheadervalue("image/png");         memorystream.close();         memorystream.dispose();          ddengine.sem.release();          return result;     }     catch     {         console.writeline("ex");     }      return response; } 

i have tried call collector @ several places in code like:

 gc.collect();  gc.waitforpendingfinalizers(); 

when doing releases resources memory usege increasing. when not calling method there no increase!

my client code looks this:

  updateimagesrc() {     let dt = new date();     let baseurl = "http://localhost:8080/api/status/dummymethod3";     this.imagepath = baseurl + "?t=" + dt.gettime(); } 

and html

<img id="img" src.bind="imagepath"/>  

any suggestions welcome!