Chrome Version       :  65.0.3325.181 
URLs (if applicable) : https://7commgames.com.au/schedule
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari: FAIL Version 11.1 (12605.1.33.1.3)
    Firefox: OK 59.0 (64-bit)
       Edge:

What steps will reproduce the problem?
(1) Empty browser cache
(2) Open the network tab in developer tools
(3) In the network tab filter box enter "translations/en_GB.json"
(4) Download the URL https://7commgames.com.au/schedule
(5) Once the page is downloaded you should see the file https://widgets.sports.gracenote.com/translations/en_GB.json has been downloaded twice
(6) Verify the first request came from the network, the second from the cache
(7) Note the timings of each request


What is the expected result?
The download time of the file retrieved from the cache should be less (<10 ms i would expect) as it has been preloaded earlier in the page load.


What happens instead?
The second request is retrieved from the cache (disk cache in this instance) and has a reported time of 849ms (the first network request was 149ms)

Please provide any additional information below. Attach a screenshot if
possible.
I have seen this issue with other URLs and on other pages whilst working to optimise our page download.
In this example the first request is triggered by the insertion of a "link" element to preload the file. This link element is inserted using javacript. 
<link rel="preload" href="//widgets.sports.gracenote.com/translations/en_GB.json" as="fetch">
(I am not sure this is relevant as it seems to be working)


 

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