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leaflet.js fails to load with CORS policy violation error #1

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justdmitry opened this issue Nov 5, 2019 · 0 comments

justdmitry commented Nov 5, 2019

Browser fails to load map page with this errors in console:

Firefox:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://unpkg.com/[email protected]/dist/leaflet.js. (Reason: CORS header ‘Access-Control-Allow-Origin’ does not match ‘https://www.weather-forecast.com’).

Chrome:

Access to script at 'https://unpkg.com/[email protected]/dist/leaflet.js' from origin '' has been blocked by CORS policy: The 'Access-Control-Allow-Origin' header has a value 'https://www.weather-forecast.com' that is not equal to the supplied origin.

It seems that unpkg.com have problems with CORS headers (again). Problem is traced at mjackson/unpkg#176, most robust solution up to date is do not use unpkg in production.

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