--- /dev/null
+add_header
+========
+This command allows you to set an additional headers for the future page requests via GastonJS.
+
+##Adding a temporal header
+This header will be valid for ONE request only, after that request it will disappear.
+```json
+{
+ "name": "add_header",
+ "args": [
+ {
+ "X-Temporal-Header": "x_temporal_value"
+ },
+ false
+ ]
+}
+```
+Response should be:
+```json
+{
+ "response": true
+}
+```
+
+##Adding a permanent header
+This header will be valid for all the requests.
+```json
+{
+ "name": "add_header",
+ "args": [
+ {
+ "X-Permanent-Test": "x_permanent_value"
+ },
+ true
+ ]
+}
+```
+Response should be:
+```json
+{
+ "response": true
+}
+```