change to support http case

src/formdata.ar

@@ -12,7 +12,7 @@ let __multipart(req, res) = do
         for (j from 0 to headerLines.length) do
             let header = headerLines[j].splitN(": ", 2)
             if (header.length != 2) continue
-            headers[header[0]] = header[1]
+            headers[header[0].lower()] = header[1]
         if (lines.length != 2) continue
         let body = lines[1]
         if (i != parts.length-1) do
@@ -41,6 +41,6 @@ let formdata(req, res) = do
     req.files = {}
 
     if (req.method != "POST") return res.next()
-    if ("content-type" in req.headers && req.headers["content-type"].startswith("multipart/form-data")) do
+    if ("content-type" in req.headers && req.headers["content-type"].lower().startswith("multipart/form-data")) do
         return __multipart(req, res)
     res.next()

src/parseRequest.ar

@@ -1,10 +1,9 @@
+import "caseInsensitive" as *
 
 let readChunkSize = 1024^2
 
 let methodsWithBody = ["POST", "PUT", "PATCH"]
 
-let caseInsensitive = ['accept', 'accept-encoding', 'accept-language', 'cache-control', 'connection', 'content-encoding', 'content-language', 'content-length', 'content-location', 'content-type', 'date', 'host', 'if-match', 'if-none-match', 'if-range', 'if-unmodified-since', 'last-modified', 'location', 'referer', 'user-agent']
-
 let parse(conn) = do
     let headerData = conn.readUntil(buffer().from("\r\n\r\n"))
     let inBody = false
@@ -17,12 +16,8 @@ let parse(conn) = do
     for (i from 1 to split.length) do
         let header = split[i].splitN(": ", 2)
         if (header.length < 2) break
-        let name = header[0]
+        let name = header[0].lower()
         let value = header[1]
-        let lowered = name.lower()
-        if (lowered in caseInsensitive) do
-            name = lowered
-            value = value.lower()
         headers[name] = value
     
     let body = buffer()