The Allies get to Norway first

From the Britannica article on WWII:

British plans for landings on the Norwegian coast in the third week of March 1940 were temporarily postponed. Prime Minister Neville Chamberlain, however, was by that time convinced that some aggressive action ought to be taken; and Paul Reynaud, who succeeded Daladier as France's premier on March 21, was of the same opinion. (Reynaud had come into office on the surge of the French public's demand for a more aggressive military policy and quicker offensive action against Germany.) It was agreed that mines should be laid in Norwegian waters and that the mining should be followed by the landing of troops at four Norwegian ports, Narvik, Trondheim, Bergen, and Stavanger.

Because of Anglo-French arguments, the date of the mining was postponed from April 5 to April 8. The postponement was catastrophic. Hitler had on April 1 ordered the German invasion of Norway to begin on April 9; so, when on April 8 the Norwegian government was preoccupied with earnest protest about the British mine laying, the German expeditions were well on their way.

So WI there had been no postponement?
 
The allies would have been in Narvik before the Germans and the troops that attempted to land there would have been lost. But there might have been fighting between Norweigan and allied troops.
 
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