Concatenate query params from dynamic backend (#225)
diff --git a/scripts/lua/policies/backendRouting.lua b/scripts/lua/policies/backendRouting.lua
index 8dde4f4..24def8e 100644
--- a/scripts/lua/policies/backendRouting.lua
+++ b/scripts/lua/policies/backendRouting.lua
@@ -46,7 +46,7 @@
whitelist[k] = whitelist[k]:lower()
end
local header = obj.header ~= nil and obj.header or 'X-Cf-Forwarded-Url'
- local dynamicBackend = ngx.req.get_headers()[header];
+ local dynamicBackend = ngx.req.get_headers()[header]
if dynamicBackend ~= nil and dynamicBackend ~= '' then
local u = url.parse(dynamicBackend)
if u.scheme == nil or u.scheme == '' then
@@ -54,6 +54,11 @@
end
if utils.tableContains(whitelist, u.host) then
ngx.req.set_uri(getUriPath(u.path))
+ local query = ngx.req.get_uri_args()
+ for k, v in pairs(u.query) do
+ query[k] = v
+ end
+ ngx.req.set_uri_args(query)
setUpstream(u)
else
request.err(403, 'Dynamic backend host not part of whitelist.')
