removed debugger statement

lib/single-file/single-file-core.js

@@ -885,7 +885,6 @@ this.SingleFileCore = this.SingleFileCore || (() => {
 							const dataURI = await batchRequest.addURL(new URL(resourceURL, baseURI).href);
 							resourceElement.setAttribute(attributeName, dataURI);
 						} catch (error) {
-							debugger
 							/* ignored */
 						}
 					}