diff --git a/lib/chrome.js b/lib/chrome.js
index c32f8e8..d2430b9 100644
--- a/lib/chrome.js
+++ b/lib/chrome.js
@@ -346,19 +346,19 @@ var ChromeObject = function() {
             return JSON.parse(responseText).result.result.value;
         } catch (e) {
             console.error("ChromeObject.getEvaluatedValue() ->", e.message);
-			return "";
+            return "";
         }
     };
 
     this.exit = function() {
         return this.sendPageRPC("Browser.close", {});
     };
-	
-	this.close = function() {
-		var response = this.sendPageRPC("Page.close", {});
-		this.setPageId(null);
-		return response;
-	};
+    
+    this.close = function() {
+        var response = this.sendPageRPC("Page.close", {});
+        this.setPageId(null);
+        return response;
+    };
 
     this.terminate = function() {
         try {
@@ -526,40 +526,40 @@ var ChromeObject = function() {
                 "g": -1,
                 "d": -1
             };
-		}
+        }
     };
 
     this.getNestedElementPosition = function(selector, subSelector, searchText) {
         var s = '';
-		
-		if (searchText.indexOf(':p(') != 0) {
-			s += '(function() {'
-				+ '    var elements = Object.values(document.querySelectorAll("' + selector + '")).filter(function(x) {'
-				+ '        return (x.querySelector("' + subSelector + '").innerText.indexOf(decodeURIComponent("' + encodeURIComponent(searchText) + '")) > -1);'
-				+ '    });'
-				+ '    if (elements.length > 0) {'
-				+ '        var rect = elements[0].getBoundingClientRect();'
-				+ '        return [parseInt(rect.left), parseInt(rect.top), parseInt(rect.x), parseInt(rect.y), parseInt(rect.right), parseInt(rect.bottom)].join(",");' 
-				+ '    } else {'
-				+ '        return "";'
-				+ '    }'
-				+ '})()'
-			;
-		} else {
-			var p = parseFloat(searchText.substring(searchText.indexOf('(') + 1, searchText.indexOf(')')));
-			s += '(function() {'
-				+ '    var elements = Object.values(document.querySelectorAll("' + selector + '")).filter(function(x) {'
-				+ '        return (Math.random() < ' + p + ');'
-				+ '    });'
-				+ '    if (elements.length > 0) {'
-				+ '        var rect = elements[0].getBoundingClientRect();'
-				+ '        return [parseInt(rect.left), parseInt(rect.top), parseInt(rect.x), parseInt(rect.y), parseInt(rect.right), parseInt(rect.bottom)].join(",");' 
-				+ '    } else {'
-				+ '        return "";'
-				+ '    }'
-				+ '})()'
-			;
-		}
+        
+        if (searchText.indexOf(':p(') != 0) {
+            s += '(function() {'
+                + '    var elements = Object.values(document.querySelectorAll("' + selector + '")).filter(function(x) {'
+                + '        return (x.querySelector("' + subSelector + '").innerText.indexOf(decodeURIComponent("' + encodeURIComponent(searchText) + '")) > -1);'
+                + '    });'
+                + '    if (elements.length > 0) {'
+                + '        var rect = elements[0].getBoundingClientRect();'
+                + '        return [parseInt(rect.left), parseInt(rect.top), parseInt(rect.x), parseInt(rect.y), parseInt(rect.right), parseInt(rect.bottom)].join(",");' 
+                + '    } else {'
+                + '        return "";'
+                + '    }'
+                + '})()'
+            ;
+        } else {
+            var p = parseFloat(searchText.substring(searchText.indexOf('(') + 1, searchText.indexOf(')')));
+            s += '(function() {'
+                + '    var elements = Object.values(document.querySelectorAll("' + selector + '")).filter(function(x) {'
+                + '        return (Math.random() < ' + p + ');'
+                + '    });'
+                + '    if (elements.length > 0) {'
+                + '        var rect = elements[0].getBoundingClientRect();'
+                + '        return [parseInt(rect.left), parseInt(rect.top), parseInt(rect.x), parseInt(rect.y), parseInt(rect.right), parseInt(rect.bottom)].join(",");' 
+                + '    } else {'
+                + '        return "";'
+                + '    }'
+                + '})()'
+            ;
+        }
 
         var result = this.getEvaluatedValue(s);
         var pos = result.split(',');
@@ -581,7 +581,7 @@ var ChromeObject = function() {
                 "g": -1,
                 "d": -1
             };
-		}
+        }
     };
 
     this.getPageHeight = function() {
@@ -647,7 +647,7 @@ var ChromeObject = function() {
             }
         } else {
             var p = parseFloat(selector.substring(selector.indexOf('(') + 1, selector.indexOf(')')));
-			var _selector = selector.substring(0, selector.indexOf(':'));
+            var _selector = selector.substring(0, selector.indexOf(':'));
             return this.evaluate('(function(obj, p) { var element = Object.values(obj).find(function() { return (Math.random() < p); }); if(element) element.click(); })(document.querySelectorAll("' + _selector + '"), ' + p + ')');
         }
     };