Fix(py/image-content-search: Swap replace with format

Fixes #679

Author: Michael Kaiser

python/image-content-search/src/landingPage/index.html

@@ -14,7 +14,7 @@
     var idToken = authData.split('&').find((rec) => rec.split('=')[0] == 'id_token').split('=')[1]
     var getSignedUrlEndpoint = window.location.href.split('#')[0].replace('web', 'signedUrl')
     var searchImageEndpoint = window.location.href.split('#')[0].replace('web', 'search')
-    var loginPage = '###loginPage###';
+    var loginPage = '{loginPage}';
     var logoutPage = loginPage.replace('login', 'logout');
 
     function logout() {

python/image-content-search/src/landingPage/main.py

@@ -11,9 +11,7 @@ def handler(event, context):
         'headers': {
             'Content-Type': 'text/html'
         },
-        'body': file_get_contents("index.html").replace('###loginPage###', login_page)
-    }
-
+        'body': file_get_contents("index.html").format(loginPage=login_page)
 def file_get_contents(filename):
     with open(filename) as f:
         return f.read()