add ADR 7 (Network errors)

docs/arch/0003-network-request-timeout.md

@@ -1,4 +1,4 @@
-# 2. Network request timeout
+# 3. Network request timeout
 
 Date: 2020-02-15
 

docs/arch/0005-asset-minimization.md

@@ -1,4 +1,4 @@
-# 4. Asset Minimization
+# 5. Asset Minimization
 
 Date: 2020-03-14
 

docs/arch/0006-reload-and-location-meta-tags.md

@@ -1,4 +1,4 @@
-# 4. Reload and location `meta` tags
+# 6. Reload and location `meta` tags
 
 Date: 2020-06-25
 

docs/arch/0007-network-errors.md

@@ -0,0 +1,19 @@
+# 7. Network errors
+
+Date: 2020-11-22
+
+## Status
+
+Accepted
+
+## Context
+
+Servers may return information with HTTP response codes other than `200`, however those responses may still contain useful data.
+
+## Decision
+
+Fail by default, notifying of the network error. Add option to continue retrieving assets by treating all response codes as `200`.
+
+## Consequences
+
+Monolith will fail to obtain resources with status other than `200`, unless told to ignore network errors.