For basic testing of the sites, I saw no breaking behavior, I did a few 
actions on sites like adding things to the cart, trying to go the login 
flow clicking on navigation, etc. Although I think would need to go a 
little deep on that, Should I submit a new CL for this counter thing? or do 
deeper local testing? 

On Monday, May 22, 2023 at 10:09:26 PM UTC+5:30 Philip Jägenstedt wrote:

> Well, this is a tricky case with no obvious answer. You've found one case 
> of array.some(...), which most likely will change the behavior of the code. 
> For the other cases where a second argument is passed is explicitly, it 
> depends on the value whether it changes behavior, if it's the same value 
> that was added, then it's fine.
>
> One concrete thing you could do is to refine the use counter to only count 
> the cases where the 2nd argument results in has() returning false instead 
> of true, or where delete() doesn't delete anything but would without the 
> 2nd argument. However, I'm not sure that would be informative, if it 
> reduces the use counter by 10x we'd still be unsure about how serious the 
> breakage is to users.
>
> In your manual testing of these sites, were you able to confirm the code 
> paths were taken, and unable to spot anything at all broken on the pages? 
> Did you compare to how the sites work without the changes?
>
> I would say that given testing of sites that hit the code path, if you 
> can't find anything at all breaking, then we should try to ship the change.
>
> On Fri, May 19, 2023 at 3:40 PM Debadree Chatterjee <debad...@gmail.com> 
> wrote:
>
>> I tried navigating and clicking around the sites, but they didn't seem to 
>> be breaking atleast even though this exception is being raised. Are there 
>> any more investigations I can do?
>>
>> On Friday, May 19, 2023 at 3:59:21 AM UTC+5:30 abot...@igalia.com wrote:
>>
>>> As for having a premonition that this would be added, there is at least 
>>> one post in the original Github issue saying that the poster already 
>>> expected the two-argument overload to be supported (
>>> https://github.com/whatwg/url/issues/335#issuecomment-919700370).
>>>
>>> Andreu
>>> On 5/18/23 23:42, PhistucK wrote:
>>>
>>> Most of them are just weird, really. I can only imagine they started 
>>> with a .set with an empty string as a second parameter and ended up 
>>> changing to .delete without deleting the second parameter.
>>> (Or they had a premonition and knew there will be a second parameter 
>>> with the specific purpose you want to ship hehe)
>>>
>>> I imagine those were outliers, I would not worry much about it (also the 
>>> bound callback is a bit too convoluted to be widely used), but that is just 
>>> me. :)
>>>
>>>

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