Surface plots with opacity < 1 not rendering in Safari 14

My 3D surface plots with opacity lower than 1 do not render anymore in Safari 14 (just updated from Safari 13).

Take this minimal example (almost equal to this one on Plotly’s website, except for the opacity):

import plotly.graph_objects as go

import pandas as pd

# Read data from a csv
z_data = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/api_docs/mt_bruno_elevation.csv')

fig = go.Figure(data=[go.Surface(z=z_data.values, opacity=0.5)])
fig.update_layout(title='Mt Bruno Elevation', autosize=False,
                  width=500, height=500,
                  margin=dict(l=65, r=50, b=65, t=90))

fig.show()

In Safari (Version 14.0 (14610.1.28.1.9)) this is rendered as:

In Chrome (v85.0.4183.102), it’s properly rendered:

I’m wondering whether this is something that can be fixed on Plotly’s side, or whether it’s a bug in the new Safari that Apple needs to address.

For completeness, Safari’s console logs this error: [Error] Failed to load resource: the server responded with a status of 404 (Not Found) (individual-plots.json, line 0)

[archmoj]

This is addressed in plotly.js v1.58.4.

[roozmahdavian]

+1, seeing an issue identical to @nonhermitian’s