Rename themes -> flavours ? ?

app/javascript/flavours/glitch/util/link_header.js

@@ -0,0 +1,33 @@
+import Link from 'http-link-header';
+import querystring from 'querystring';
+
+Link.parseAttrs = (link, parts) => {
+  let match = null;
+  let attr  = '';
+  let value = '';
+  let attrs = '';
+
+  let uriAttrs = /<(.*)>;\s*(.*)/gi.exec(parts);
+
+  if(uriAttrs) {
+    attrs = uriAttrs[2];
+    link  = Link.parseParams(link, uriAttrs[1]);
+  }
+
+  while(match = Link.attrPattern.exec(attrs)) { // eslint-disable-line no-cond-assign
+    attr  = match[1].toLowerCase();
+    value = match[4] || match[3] || match[2];
+
+    if( /\*$/.test(attr)) {
+      Link.setAttr(link, attr, Link.parseExtendedValue(value));
+    } else if(/%/.test(value)) {
+      Link.setAttr(link, attr, querystring.decode(value));
+    } else {
+      Link.setAttr(link, attr, value);
+    }
+  }
+
+  return link;
+};
+
+export default Link;