Closes #3771; Fix some oembed issues

packages/rocketchat-oembed/server/server.coffee

@@ -106,20 +106,20 @@ OEmbed.getUrlMeta = (url, withFragment) ->
 
 	if content?.body?
 		metas = {}
-		content.body.replace /<title>((.|\n)+?)<\/title>/gmi, (meta, title) ->
-			metas.pageTitle = he.unescape title
+		content.body.replace /<title[^>]*>([^<]*)<\/title>/gmi, (meta, title) ->
+			metas.pageTitle ?= he.unescape title
 
-		content.body.replace /<meta[^>]*(?:name|property)=[']([^']*)['][^>]*content=[']([^']*)['][^>]*>/gmi, (meta, name, value) ->
-			metas[changeCase.camelCase(name)] = he.unescape value
+		content.body.replace /<meta[^>]*(?:name|property)=[']([^']*)['][^>]*\scontent=[']([^']*)['][^>]*>/gmi, (meta, name, value) ->
+			metas[changeCase.camelCase(name)] ?= he.unescape value
 
-		content.body.replace /<meta[^>]*(?:name|property)=["]([^"]*)["][^>]*content=["]([^"]*)["][^>]*>/gmi, (meta, name, value) ->
-			metas[changeCase.camelCase(name)] = he.unescape value
+		content.body.replace /<meta[^>]*(?:name|property)=["]([^"]*)["][^>]*\scontent=["]([^"]*)["][^>]*>/gmi, (meta, name, value) ->
+			metas[changeCase.camelCase(name)] ?= he.unescape value
 
-		content.body.replace /<meta[^>]*content=[']([^']*)['][^>]*(?:name|property)=[']([^']*)['][^>]*>/gmi, (meta, value, name) ->
-			metas[changeCase.camelCase(name)] = he.unescape value
+		content.body.replace /<meta[^>]*\scontent=[']([^']*)['][^>]*(?:name|property)=[']([^']*)['][^>]*>/gmi, (meta, value, name) ->
+			metas[changeCase.camelCase(name)] ?= he.unescape value
 
-		content.body.replace /<meta[^>]*content=["]([^"]*)["][^>]*(?:name|property)=["]([^"]*)["][^>]*>/gmi, (meta, value, name) ->
-			metas[changeCase.camelCase(name)] = he.unescape value
+		content.body.replace /<meta[^>]*\scontent=["]([^"]*)["][^>]*(?:name|property)=["]([^"]*)["][^>]*>/gmi, (meta, value, name) ->
+			metas[changeCase.camelCase(name)] ?= he.unescape value
 
 
 		if metas.fragment is '!' and not withFragment?