added fallback middleware

.gitignore

@@ -1,2 +1,44 @@
 blog.db
+backend
 **/.DS_Store
+# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
+
+# Compiled output
+web/dist
+web/tmp
+web/out-tsc
+web/bazel-out
+
+# Node
+web/node_modules
+web/npm-debug.log
+web/yarn-error.log
+
+# IDEs and editors
+web/.idea/
+web/.project
+web/.classpath
+web/.c9/
+web/*.launch
+web/.settings/
+web/*.sublime-workspace
+
+# Visual Studio Code
+web/.vscode/*
+web/!.vscode/settings.json
+web/!.vscode/tasks.json
+web/!.vscode/launch.json
+web/!.vscode/extensions.json
+web/.history/*
+
+# Miscellaneous
+web/.angular/cache
+web/.sass-cache/
+web/connect.lock
+web/coverage
+web/libpeerconnection.log
+testem.log
+web/typings
+
+# System files
+web/Thumbs.db