633830 - Replace method on strings fails with RegExp object from another compartment

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Daniel Hahler]

User-Agent:       Mozilla/5.0 (X11; Linux i686; rv:2.0b12pre) Gecko/20110213 Firefox/4.0b12pre
Build Identifier: Mozilla/5.0 (X11; Linux i686; rv:2.0b12pre) Gecko/20110213 Firefox/4.0b12pre

I've run into this bug using Pentadactyl, where I have the following in my rc file:
   map gp -js dactyl.open(buffer.URL.replace(/(\.\w{2,4})\//, "$1.nyud.net/"))

Howerver, buffer.URL.replace never worked when using a RegExp object, but only when using normal strings for the pattern.

According to Kris Maglione this is a bug in Firefox.

Reproducible: Always




The extensions source of the Buffer object can be seen at http://code.google.com/p/dactyl/source/browse/common/content/buffer.js - in case this might be relevant.

Comment 1

[Kris Maglione [:kmag]]

To add some more detail to this, the replacement works, but the stringified version of the regexp is replaced rather than the matching text. So, "/(\\.\\w{2,4})\\//r".replace(regexp, "##") returns the string "##".

If I had to guess, I'd say that this was related to 606875, although {}.toString.call(regexp) does now return "[object RegExp]" as expected.

Comment 2

[Wayne Mery (:wsmwk)]

So this is a regression of bug 606875 ?

Comment 3

[Firefox Bug Husbandry Bot]

2019-03-06

This bug is part of a group of bugs which have had an open needinfo for at least 12 weeks.

The request for information has not been answered, and we can't move forward on the bug so we are closing it.

If the defect is still present, please reopen this bug with an updated report.