add imagePathAbsolute option

src/js/easymde.js

@@ -2340,7 +2340,7 @@ EasyMDE.prototype.uploadImage = function (file, onSuccess, onError) {
             return;
         }
         if (this.status === 200 && response && !response.error && response.data && response.data.filePath) {
-            onSuccess(window.location.origin + '/' + response.data.filePath);
+            onSuccess((self.options.imagePathAbsolute ? '' : (window.location.origin + '/')) + response.data.filePath);
         } else {
             if (response.error && response.error in self.options.errorMessages) {  // preformatted error message
                 onErrorSup(fillErrorMessage(self.options.errorMessages[response.error]));

types/easymde.d.ts

@@ -207,6 +207,7 @@ declare namespace EasyMDE {
         imageAccept?: string;
         imageUploadFunction?: (file: File, onSuccess: (url: string) => void, onError: (error: string) => void) => void;
         imageUploadEndpoint?: string;
+        imagePathAbsolute?: boolean;
         imageCSRFToken?: string;
         imageTexts?: ImageTextsOptions;
         errorMessages?: ImageErrorTextsOptions;