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My problem is that I cannot view an image loaded from an external site into an img tag in my lightning component. The URL is with 'http' protocol not 'https', but when I see the Chrome Console, it tells that failed to load resource and I noticed that Salesforce try to go to the external site with the 'https' protocol and so it not find the resource. Why all this happens?

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Try going to settings > search for Remote Site Settings, click New Remote Site > Give it a Name, type in the FULL URL of the image including the 'http://' BE SURE to check the box: Disable Protocol Security since this is not an 'https', make it active and try your image then Good luck!

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  • I have several images to show. Can I only add the domain to the whitelist? Why you say to add the full URL? – CRK Oct 12 '18 at 13:22
  • Oh yes, sorry, just the domain works. I said FULL meaning include http – ryangreene Oct 12 '18 at 13:25
  • Also, if Remote Sites doesn't work you can try adding it to CSP Trusted Sites. CSP just doesn't give you the option of Disabling Protocol Security – ryangreene Oct 12 '18 at 13:26
  • I tried to add the domain to remote sites, but nothing changed. If it can be a plus, the component is shown into a community. Can this be a problem? – CRK Oct 12 '18 at 13:50
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    help.salesforce.com/… – ryangreene Oct 12 '18 at 14:03
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As @ryangreene has commented in a different answer the solution may be found in https://help.salesforce.com/articleView?id=000334127&type=1&mode=1

Chrome has a security feature to block insecure content (HTTP) which is being loaded via a secure page (HTTPS). In order to avoid this error, the content being loaded must be in secure form (HTTPS).

How to bypass the Chrome limitation could be found here: https://stackoverflow.com/questions/18321032/how-to-get-chrome-to-allow-mixed-content

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