ListItem Schema [schema.org/ItemList] error: "All values provided for url must have the same domain." - schema.org

Question

I am facing issue with this ListItem schema validation on https://search.google.com/structured-data/testing-tool/u/0/
Getting error
All values provided for url must have the same domain.
I have provided same domain in every URL field.
{
"#context": "http://schema.org",
"#type": "ItemList",
"name": "Tech News",
"url": "http://m.gadgetsnow.com/tech-news",
"itemListElement": [
{
"#type": "ListItem",
"position": "1",
"url": "http://m.gadgetsnow.com/tech-news/are-tvs-going-out-of-fashion/articleshow/58375579.cms",
"name": "Are TVs going out of fashion?",
"image": {
"#type": "ImageObject",
"contentUrl": "http://m.gadgetsnow.com/photo/58375579.cms",
"width": "360",
"height": "270",
"url": "http://m.gadgetsnow.com/photo/58375579.cms"
}
},
{
"#type": "ListItem",
"position": "2",
"url": "http://m.gadgetsnow.com/tech-news/reliance-jio-discounts-are-not-going-anywhere-for-now-heres-why/articleshow/58374335.cms",
"name": "Reliance Jio discounts are not going anywhere for now, here's why",
"image": {
"#type": "ImageObject",
"contentUrl": "http://m.gadgetsnow.com/photo/58374335.cms",
"width": "360",
"height": "270",
"url": "http://m.gadgetsnow.com/photo/58374335.cms"
}
}
]
}

Answer 1

You may try using the correct version of ItemList. There are Separately and Combined marked up ItemLists as referred here.
If your items are on the same page, please use the version with items inside, the Combined one.
Otherwise, if you point to different pages inside and your items are not on one page, please DON’T put item element with type and other
description inside, the Separately marked up one.
Additional references:
Error in Google SDTT: "All values provided for url must point to the same page."
Schema.org and ContactPoint use with validation failure: “All values provided for http://www.example.com/ must have the same domain.”

Answer 2

There are no bugs. Be careful if the validator gives errors, a big chance that rich snippets will not work.
So what's the problem? The first thing to note is that in the ListItem object, either url or item can be used. As the schema.org documentation says, item is used for:
an artist’s list of data artists (e.g. an 'artist' in a list of 'artists')
And the most important thing that I noticed: if you use item and you want the scheme to be correct, then the domain and its parts should be the same in all ListItem, but the anchors are different, which are separated from the url using the # symbol. Google gives a specific example:
<script type="application/ld+json">
{
"#context": "https://schema.org",
"#type": "ItemList",
"itemListElement": [
{
"#type": "ListItem",
"position": "1",
"item": {
"#context": "https://schema.org/",
"#type": "Recipe",
"url": "http://example.com/big_list_of_recipes#cherry_pie",
}
},
{
"#type": "ListItem",
"position": "2",
"item": {
"#context": "https://schema.org/",
"#type": "Recipe",
"url": "http://example.com/big_list_of_recipes#coffee_cake",
...
}
}
]
}
</script>
As you can see in the list, the same URL is used http://example.com/big_list_of_recipe, but different anchors: #cherry_pie and #coffee_cake.
But still it is not clarity how to specify the URL, which is a separate page for the thing.