I thought iOS was supposed to convert HEIC images to JPEG automatically behind-the-scenes in any file transfer situation where HEIC isn't supported. The article itself even says: > iPhones convert HEICs to JPEGs automatically when they’re attached to emails in the Mail app I'm just curious technically why the same didn't happen with the testing portal? If you have a webpage that accepts image uploads, is iOS Safari n…
Ten bucks says College Board programmer(s) failed to do the most basic and standard filtering.
Edit: Like a sibling comment said, the accept attribute actually isn't necessary; even PNG images (e.g. screenshots) from Photos are converted to JPEG automatically. This is true on both macOS and iOS Safari (latest). To be clear, on macOS you need to select from Photos instead of the filesystem for this to take effect.
In case anyone's interested, source code you can use to test for yourself (a Flask app):
app.py:
import flask
app = flask.Flask(__name__)
@app.route("/", methods=["GET", "POST"])
def index():
if flask.request.method == "POST":
image = flask.request.files["image"]
return f"uploaded {image.filename!r} ({image.mimetype})"
return flask.render_template("index.html")