WebDriverException: InternalError: too much recursion on an attempt to return a recursive structure

[barancev]

System

• Version: 0.18
• Platform: Windows 7
• Firefox: 57.0a1 (2017-08-28) (64-bit)
• Selenium: 3.5.3 Java

Testcase

A followup to #328.

driver.executeScript("var obj1 = {}; var obj2 = {}; obj1['obj2'] = obj2; obj2['obj1'] = obj1; return obj1;");

According to JSON clone algorythm [1], there should be "javascript error" ("If value is in seen, return error with error code javascript error.")

But geckodriver returns "unknown error":

1504186638869   Marionette  TRACE   0 -> [0,3,"executeScript",{"args":[],"newSandbox":false,"script":"var obj1 = {}; var obj2 = {}; obj1['obj2'] = obj2; obj2['obj1'] = obj1; return obj1;","scriptTimeout":null,"specialPowers":false}]
1504186639109   Marionette  TRACE   0 <- [1,3,{"error":"unknown error","message":"InternalError: too much recursion","stacktrace":""},null]

[1] https://w3c.github.io/webdriver/webdriver-spec.html#dfn-internal-json-clone-algorithm

[AutomatedTester]

Raised https://bugzilla.mozilla.org/show_bug.cgi?id=1398094

[andreastt]

This will be fixed as part of https://bugzilla.mozilla.org/show_bug.cgi?id=1106913.