TypeError: Unable to delete property

Question

Even when the most basic map loads the following error is shown:

TypeError: Unable to delete property.

This has to do with the zoom, as with any zooming, the error is shown again.

I have tried to reset the map to v 3.5 https://maps.googleapis.com/maps/api/js?v=3

and it worked for a few days, then the same error happened again.

Going back even further to v3 would not help anymore. What happened and how could this be fixed?

BTW: the problem does NOT occur with CHROME/FIREFOX BUT with SAFARI (5.1.1)

Answer 1

TL;DR: The support for Safari 5.1 has stopped. Solutions are upgrading the browser or use a different one.

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The new version of Google Maps was announced here. AFAIK the newest stable version of Google Maps is shipped since 17.12.2014 (v3.18) and does not support any version of Safari < 6.

I've found this answer from a Google Staff here:

Apple has retired Safari 5.1 (and OS X 10.6 in general), last issuing a (security-only) patch over a year ago. Likewise, the Maps API is no longer supporting that browser (as discussed in the FAQ as well as a few other places: https://developers.google.com/maps/faq#browsersupport).

Browser migration is painful and sites often have no control over what browsers their users visit with, but -- as browsers age -- a line must be drawn somewhere. Safari 5 last got a major feature update nearly 3 years ago (in 5.1.4) and can no longer keep up with what's needed from it.

Users really should not be on OS X 10.6 either (as its last security update was at the same time as Safari 5's, in September 2013), but the good news for those who won't or can't update is that the latest versions of both Chrome and Firefox still support 10.6, and both of those are well supported by the JS Maps API.

For me the changelog was a little confusing:

The current and previous version of Safari (Mac OS X)

This apparently does not cover discontinued versions of Mac OS X. Also Safari for Windows is not mentioned. Looking at the support timeline for Safari Windows is no longer supported anyways.

• Changelog of the Google Maps API
• Browser support of Google Maps Javascript API