Hi Shwu-Jing,
I am still seeing this error when viewed in Edge and we sees this on several machines at work as well as a few laptops from home (so not just a localized issue with the company's security restrictions). My preference would be for people to use browsers other than IE or Edge but since this is a public reporting form, I don't have control on the browser people are choosing to use.
I am able to narrow this down to two separate lines in the spreadsheet:
The first is just adding a logo/banner to the top of the form (doesn't seem to matter if .gif or .png). When I first released these forms last spring, they all were working fine in Edge:Report wildlife observations | Washington Department of Fish & Wildlife
When I remove the logo (actually the entire record in the spreadsheet), I no longer get the error in Edge
The second issue is isolated to a more complicated survey form:https://survey123.arcgis.com/share/a384e90f69744f2e846135a9ce80027f
Because Edge and IE can't use autocomplete to select a species from a dropdown list of 200+ values, I provided an intermediate step where the users can select a species group, which then filters the number of species in the dropdown to a more manageable number that someone can scroll thru. When I pass thru the Append error message, the form loads but with a corrupted, non-functional version of the form. In this situation, it appears that the value in the "choice_filter" field is causing the error (species_group=${SppGrpSel_FormOnly}):