public function DataUrl ($relativeOrAbsolutePath) {
		$currentDirFullPath = $this->view->GetCurrentViewDirectory();
		$searchedPaths = [];
		// first - try to find file relatively from currently rendered view
		array_unshift($searchedPaths, $currentDirFullPath . '/' . $relativeOrAbsolutePath);
		if (!file_exists($searchedPaths[0])) {
			// second - try to find file relatively from application root
			array_unshift($searchedPaths, $this->appRoot . '/' . ltrim($relativeOrAbsolutePath, '/'));
			if (!file_exists($searchedPaths[0])) {
				// third - try to find file absolutely
				array_unshift($searchedPaths, $relativeOrAbsolutePath);
				if (!file_exists($searchedPaths[0])) {
					// throw an error at last
					$selfClass = version_compare(PHP_VERSION, '5.5', '>') ? self::class : __CLASS__;
					throw new \InvalidArgumentException(
						"[".$selfClass."] File not found in paths: '" . implode("', '", array_reverse($searchedPaths)) . "'."
					);
				}
			}
		}
		// get last searched path
		$fileFullPath = $searchedPaths[0];
		// Read image path, convert to base64 encoding
		$imageData = base64_encode(file_get_contents($fileFullPath));
		// Format the image SRC:  data:{mime};base64,{data};
		$result = 'data: '.mime_content_type($fileFullPath).';base64,'.$imageData;
		return $result;
	}