Errors when I try to see the file in Firefox

I’m following the videos tutorial in YouTube “Creating an Image Gallery Tutorial”. I’m doing the process fllowing the videos step by step in a localhost under MAMP and, after the video 17, it seems all is allright, and works perfectly on a Design view in Wappler but when I try to see the results of what I’m doing in Firefox the list of Galleries doesn’t appears (cells of the table appears as if were empty) and when I check the web console in Firefox (developer) appears all of this "errors "

The script from “http://localhost/dmxAppConnect/dmxAppConnect.js” was loaded even though its MIME type (“text/html”) is not a valid JavaScript MIME type.
index.html

Loading failed for the with source “http://localhost/dmxAppConnect/dmxAppConnect.js”. index.html:5:1

The script from “http://localhost/dmxAppConnect/dmxBootstrap4Navigation/dmxBootstrap4Navigation.js” was loaded even though its MIME type (“text/html”) is not a valid JavaScript MIME type.

index.html

The script from “http://localhost/dmxAppConnect/dmxValidator/dmxValidator.js” was loaded even though its MIME type (“text/html”) is not a valid JavaScript MIME type.

index.html

The script from “http://localhost/dmxAppConnect/dmxBootstrap4Modal/dmxBootstrap4Modal.js” was loaded even though its MIME type (“text/html”) is not a valid JavaScript MIME type.

index.html

The script from “http://localhost/dmxAppConnect/dmxFormatter/dmxFormatter.js” was loaded even though its MIME type (“text/html”) is not a valid JavaScript MIME type.

index.html

The script from “http://localhost/dmxAppConnect/dmxDataTraversal/dmxDataTraversal.js” was loaded even though its MIME type (“text/html”) is not a valid JavaScript MIME type.

index.html

Loading failed for the with source “http://localhost/dmxAppConnect/dmxBootstrap4Navigation/dmxBootstrap4Navigation.js”. index.html:10:1

Loading failed for the with source “http://localhost/dmxAppConnect/dmxValidator/dmxValidator.js”. index.html:15:1

Loading failed for the with source “http://localhost/dmxAppConnect/dmxBootstrap4Modal/dmxBootstrap4Modal.js”. index.html:13:1

Loading failed for the with source “http://localhost/dmxAppConnect/dmxFormatter/dmxFormatter.js”. index.html:17:1

Loading failed for the with source “http://localhost/dmxAppConnect/dmxDataTraversal/dmxDataTraversal.js”. index.html:16:1

None of them appears in Wappler vision Desing.

Hello,
Can you please post a screenshot of these errors in your browser console?

Here you have the screen without the names of galleries (left of the screen)


And here is the list of WARNINGS in the Firefox console.

Are you sure there is no some adblocker script or something similar installed in your browser? Does this happen in “safe mode”?
Have you tested this in other browsers as well?

I can’t see any adblocker installed.
I tested the page in Safari and Google Chrome with the same result.
What do you mean “in safe mode”?.
Thanks in advance for your time.

Can you upload this page to some hosting server, where i can inspect it?