Your system information

1. Steam client version

   Production website. This also affects the client, but it's not client-specific.

2. Distribution

   1. cpe:/o:fedoraproject:fedora:42

   2. The FP5 OEM's cpe:/o:google:android:12 distribution

3. Opted into Steam client beta?

   Yes.

4. Have you checked for system updates?

   Yes.

Steps for reproducing this issue

1. Visit store.steampowered.com/news/group/4145017/view/3128319763053339626.

2. Utilise a small enough display that the client's viewport resizes, or a mobile UA on the website.

3. Select /html/body/div[1]/div[7]/div[6]/div[3]/div/div/div[1]/div/div[2]/div[3]/div[1]/div:

   

   <div class="tool-tip-source Focusable"><div class="_1djkdp7OAd0mF3a90RKf27 _3WcW8PJCSEWwVA6qJ-RUOF"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><polygon stroke="currentColor" fill="none" points="50 4.7 61.1 38.9 97.2 38.9 68 60.1 79.2 94.4 50 73.2 20.8 94.4 32 60.1 2.8 38.9 38.9 38.9 50 4.7" stroke-linejoin="round" stroke-width="5"></polygon></svg></div></div>
   

Please describe your issue in as much detail as possible

This sends:

15:55:22.174 XHRPOST
https://store.steampowered.com/api/addtowishlist
[HTTP/1.1 200 OK 294ms]

The response appears successful:

15:56:07.549 GetMsgAndErrorCodeFromResponse cannot parse:  
Object { success: 2, wishlistCount: 45 }
main.js:14:1297846

However, it fails:

Desktop

Mobile

<form role="dialog" aria-labelledby=":r5:" aria-describedby=":r4:"><div id=":r5:" role="heading" aria-level="2" class="DialogHeader">Update Wishlist Error</div><div class="DialogBody Panel Focusable"><div class="DialogBodyText"><div id=":r4:" style="display: contents;">We encountered an error adding to your wishlist. Please try again later:</div><br><br>Unknown Error: [object Object]</div><div class="DialogFooter"><button type="submit" class="DialogButton _DialogLayout Primary Focusable" role="button">Close</button></div></div></form>